Datasets:

philikai

/

SQL_Spider_DDL

like 1

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT avg(num_of_staff) , avg(score) FROM shop

What are the average score and average staff number of all shops?

coffee_shop

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT shop_id , address FROM shop WHERE score < (SELECT avg(score) FROM shop)

Find the id and address of the shops whose score is below the average score.

coffee_shop

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT address , num_of_staff FROM shop WHERE shop_id NOT IN (SELECT shop_id FROM happy_hour)

Find the address and staff number of the shops that do not have any happy hour.

coffee_shop

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT t1.address , t1.shop_id FROM shop AS t1 JOIN happy_hour AS t2 ON t1.shop_id = t2.shop_id WHERE MONTH = 'May'

What are the id and address of the shops which have a happy hour in May?

coffee_shop

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT shop_id , count(*) FROM happy_hour GROUP BY shop_id ORDER BY count(*) DESC LIMIT 1

which shop has happy hour most frequently? List its id and number of happy hours.

coffee_shop

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT MONTH FROM happy_hour GROUP BY MONTH ORDER BY count(*) DESC LIMIT 1

Which month has the most happy hours?

coffee_shop

CREATE TABLE "shop" ( "Shop_ID" int, "Address" text, "Num_of_staff" text, "Score" real, "Open_Year" text, PRIMARY KEY ("Shop_ID") ) CREATE TABLE "member" ( "Member_ID" int, "Name" text, "Membership_card" text, "Age" int, "Time_of_purchase" int, "Level_of_membership" int, "Address" text, PRIMARY KEY ("Member_ID") ) CREATE TABLE "happy_hour" ( "HH_ID" int, "Shop_ID" int, "Month" text, "Num_of_shaff_in_charge" int, PRIMARY KEY ("HH_ID","Shop_ID","Month"), FOREIGN KEY ("Shop_ID") REFERENCES `shop`("Shop_ID") ) CREATE TABLE "happy_hour_member" ( "HH_ID" int, "Member_ID" int, "Total_amount" real, PRIMARY KEY ("HH_ID","Member_ID"), FOREIGN KEY ("Member_ID") REFERENCES `member`("Member_ID") )

SELECT MONTH FROM happy_hour GROUP BY MONTH HAVING count(*) > 2

Which months have more than 2 happy hours?

coffee_shop

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT count(*) FROM ALBUM

How many albums are there?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT count(*) FROM ALBUM

Find the number of albums.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM GENRE

List the names of all music genres.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM GENRE

What are the names of different music genres?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT * FROM CUSTOMER WHERE State = "NY"

Find all the customer information in state NY.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT * FROM CUSTOMER WHERE State = "NY"

What is all the customer information for customers in NY state?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT FirstName , LastName FROM EMPLOYEE WHERE City = "Calgary"

What are the first names and last names of the employees who live in Calgary city.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT FirstName , LastName FROM EMPLOYEE WHERE City = "Calgary"

Find the full names of employees living in the city of Calgary.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT distinct(BillingCountry) FROM INVOICE

What are the distinct billing countries of the invoices?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT distinct(BillingCountry) FROM INVOICE

Find the different billing countries for all invoices.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM ARTIST WHERE Name LIKE "%a%"

Find the names of all artists that have "a" in their names.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM ARTIST WHERE Name LIKE "%a%"

What are the names of artist who have the letter 'a' in their names?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Title FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId WHERE T2.Name = "AC/DC"

Find the title of all the albums of the artist "AC/DC".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Title FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId WHERE T2.Name = "AC/DC"

What are the titles of albums by the artist "AC/DC"?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId WHERE T2.Name = "Metallica"

Hom many albums does the artist "Metallica" have?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId WHERE T2.Name = "Metallica"

Find the number of albums by the artist "Metallica".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.Name FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId WHERE T1.Title = "Balls to the Wall"

Which artist does the album "Balls to the Wall" belong to?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.Name FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId WHERE T1.Title = "Balls to the Wall"

Find the name of the artist who made the album "Balls to the Wall".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.Name FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId GROUP BY T2.Name ORDER BY COUNT(*) DESC LIMIT 1

Which artist has the most albums?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.Name FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId GROUP BY T2.Name ORDER BY COUNT(*) DESC LIMIT 1

What is the name of the artist with the greatest number of albums?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM TRACK WHERE Name LIKE '%you%'

Find the names of all the tracks that contain the word "you".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM TRACK WHERE Name LIKE '%you%'

What are the names of tracks that contain the the word you in them?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(UnitPrice) FROM TRACK

What is the average unit price of all the tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(UnitPrice) FROM TRACK

Find the average unit price for a track.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT max(Milliseconds) , min(Milliseconds) FROM TRACK

What are the durations of the longest and the shortest tracks in milliseconds?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT max(Milliseconds) , min(Milliseconds) FROM TRACK

Find the maximum and minimum durations of tracks in milliseconds.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Title , T2.AlbumID , COUNT(*) FROM ALBUM AS T1 JOIN TRACK AS T2 ON T1.AlbumId = T2.AlbumId GROUP BY T2.AlbumID

Show the album names, ids and the number of tracks for each album.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Title , T2.AlbumID , COUNT(*) FROM ALBUM AS T1 JOIN TRACK AS T2 ON T1.AlbumId = T2.AlbumId GROUP BY T2.AlbumID

What are the names and ids of the different albums, and how many tracks are on each?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Name FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId GROUP BY T2.GenreId ORDER BY COUNT(*) DESC LIMIT 1

What is the name of the most common genre in all tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Name FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId GROUP BY T2.GenreId ORDER BY COUNT(*) DESC LIMIT 1

Find the name of the genre that is most frequent across all tracks.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Name FROM MEDIATYPE AS T1 JOIN TRACK AS T2 ON T1.MediaTypeId = T2.MediaTypeId GROUP BY T2.MediaTypeId ORDER BY COUNT(*) ASC LIMIT 1

What is the least common media type in all tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Name FROM MEDIATYPE AS T1 JOIN TRACK AS T2 ON T1.MediaTypeId = T2.MediaTypeId GROUP BY T2.MediaTypeId ORDER BY COUNT(*) ASC LIMIT 1

What is the name of the media type that is least common across all tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Title , T2.AlbumID FROM ALBUM AS T1 JOIN TRACK AS T2 ON T1.AlbumId = T2.AlbumId WHERE T2.UnitPrice > 1 GROUP BY T2.AlbumID

Show the album names and ids for albums that contain tracks with unit price bigger than 1.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Title , T2.AlbumID FROM ALBUM AS T1 JOIN TRACK AS T2 ON T1.AlbumId = T2.AlbumId WHERE T2.UnitPrice > 1 GROUP BY T2.AlbumID

What are the titles and ids for albums containing tracks with unit price greater than 1?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Rock"

How many tracks belong to rock genre?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Rock"

Count the number of tracks that are part of the rock genre.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(UnitPrice) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Jazz"

What is the average unit price of tracks that belong to Jazz genre?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(UnitPrice) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Jazz"

Find the average unit price of jazz tracks.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT FirstName , LastName FROM CUSTOMER WHERE Email = "luisg@embraer.com.br"

What is the first name and last name of the customer that has email "luisg@embraer.com.br"?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT FirstName , LastName FROM CUSTOMER WHERE Email = "luisg@embraer.com.br"

Find the full name of the customer with the email "luisg@embraer.com.br".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM CUSTOMER WHERE Email LIKE "%gmail.com%"

How many customers have email that contains "gmail.com"?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM CUSTOMER WHERE Email LIKE "%gmail.com%"

Count the number of customers that have an email containing "gmail.com".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.FirstName , T2.LastName FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId WHERE T1.FirstName = "Leonie"

What is the first name and last name employee helps the customer with first name Leonie?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.FirstName , T2.LastName FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId WHERE T1.FirstName = "Leonie"

Find the full names of employees who help customers with the first name Leonie.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.City FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId WHERE T1.PostalCode = "70174"

What city does the employee who helps the customer with postal code 70174 live in?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.City FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId WHERE T1.PostalCode = "70174"

Find the cities corresponding to employees who help customers with the postal code 70174.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(DISTINCT city) FROM EMPLOYEE

How many distinct cities does the employees live in?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(DISTINCT city) FROM EMPLOYEE

Find the number of different cities that employees live in.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.InvoiceDate FROM CUSTOMER AS T1 JOIN INVOICE AS T2 ON T1.CustomerId = T2.CustomerId WHERE T1.FirstName = "Astrid" AND LastName = "Gruber"

Find all invoice dates corresponding to customers with first name Astrid and last name Gruber.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.InvoiceDate FROM CUSTOMER AS T1 JOIN INVOICE AS T2 ON T1.CustomerId = T2.CustomerId WHERE T1.FirstName = "Astrid" AND LastName = "Gruber"

What are the invoice dates for customers with the first name Astrid and the last name Gruber?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT LastName FROM CUSTOMER EXCEPT SELECT T1.LastName FROM CUSTOMER AS T1 JOIN Invoice AS T2 ON T1.CustomerId = T2.CustomerId WHERE T2.total > 20

Find all the customer last names that do not have invoice totals larger than 20.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT LastName FROM CUSTOMER EXCEPT SELECT T1.LastName FROM CUSTOMER AS T1 JOIN Invoice AS T2 ON T1.CustomerId = T2.CustomerId WHERE T2.total > 20

What are the last names of customers without invoice totals exceeding 20?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT DISTINCT T1.FirstName FROM CUSTOMER AS T1 JOIN INVOICE AS T2 ON T1.CustomerId = T2.CustomerId WHERE T1.country = "Brazil"

Find the first names of all customers that live in Brazil and have an invoice.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT DISTINCT T1.FirstName FROM CUSTOMER AS T1 JOIN INVOICE AS T2 ON T1.CustomerId = T2.CustomerId WHERE T1.country = "Brazil"

What are the different first names for customers from Brazil who have also had an invoice?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT DISTINCT T1.Address FROM CUSTOMER AS T1 JOIN INVOICE AS T2 ON T1.CustomerId = T2.CustomerId WHERE T1.country = "Germany"

Find the address of all customers that live in Germany and have invoice.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT DISTINCT T1.Address FROM CUSTOMER AS T1 JOIN INVOICE AS T2 ON T1.CustomerId = T2.CustomerId WHERE T1.country = "Germany"

What are the addresses of customers living in Germany who have had an invoice?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Phone FROM EMPLOYEE

List the phone numbers of all employees.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Phone FROM EMPLOYEE

What are the phone numbers for each employee?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM MEDIATYPE AS T1 JOIN TRACK AS T2 ON T1.MediaTypeId = T2.MediaTypeId WHERE T1.Name = "AAC audio file"

How many tracks are in the AAC audio file media type?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT COUNT(*) FROM MEDIATYPE AS T1 JOIN TRACK AS T2 ON T1.MediaTypeId = T2.MediaTypeId WHERE T1.Name = "AAC audio file"

Count the number of tracks that are of the media type "AAC audio file".

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(Milliseconds) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Latin" OR T1.Name = "Pop"

What is the average duration in milliseconds of tracks that belong to Latin or Pop genre?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(Milliseconds) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Latin" OR T1.Name = "Pop"

Find the average millisecond length of Latin and Pop tracks.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.FirstName , T1.SupportRepId FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId GROUP BY T1.SupportRepId HAVING COUNT(*) >= 10

Please show the employee first names and ids of employees who serve at least 10 customers.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.FirstName , T1.SupportRepId FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId GROUP BY T1.SupportRepId HAVING COUNT(*) >= 10

What are the first names and support rep ids for employees serving 10 or more customers?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.LastName FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId GROUP BY T1.SupportRepId HAVING COUNT(*) <= 20

Please show the employee last names that serves no more than 20 customers.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.LastName FROM CUSTOMER AS T1 JOIN EMPLOYEE AS T2 ON T1.SupportRepId = T2.EmployeeId GROUP BY T1.SupportRepId HAVING COUNT(*) <= 20

What are the last names of employees who serve at most 20 customers?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Title FROM ALBUM ORDER BY Title

Please list all album titles in alphabetical order.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Title FROM ALBUM ORDER BY Title

What are all the album titles, in alphabetical order?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.Name , T1.ArtistId FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistID GROUP BY T1.ArtistId HAVING COUNT(*) >= 3 ORDER BY T2.Name

Please list the name and id of all artists that have at least 3 albums in alphabetical order.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T2.Name , T1.ArtistId FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistID GROUP BY T1.ArtistId HAVING COUNT(*) >= 3 ORDER BY T2.Name

What are the names and ids of artists with 3 or more albums, listed in alphabetical order?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM ARTIST EXCEPT SELECT T2.Name FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId

Find the names of artists that do not have any albums.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT Name FROM ARTIST EXCEPT SELECT T2.Name FROM ALBUM AS T1 JOIN ARTIST AS T2 ON T1.ArtistId = T2.ArtistId

What are the names of artists who have not released any albums?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(T2.UnitPrice) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Rock"

What is the average unit price of rock tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT AVG(T2.UnitPrice) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Rock"

Find the average unit price of tracks from the Rock genre.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT max(Milliseconds) , min(Milliseconds) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Pop"

What are the duration of the longest and shortest pop tracks in milliseconds?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT max(Milliseconds) , min(Milliseconds) FROM GENRE AS T1 JOIN TRACK AS T2 ON T1.GenreId = T2.GenreId WHERE T1.Name = "Pop"

Find the maximum and minimum millisecond lengths of pop tracks.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT BirthDate FROM EMPLOYEE WHERE City = "Edmonton"

What are the birth dates of employees living in Edmonton?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT BirthDate FROM EMPLOYEE WHERE City = "Edmonton"

Find the birth dates corresponding to employees who live in the city of Edmonton.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT distinct(UnitPrice) FROM TRACK

What are the distinct unit prices of all tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT distinct(UnitPrice) FROM TRACK

Find the distinct unit prices for tracks.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT count(*) FROM ARTIST WHERE artistid NOT IN(SELECT artistid FROM ALBUM)

How many artists do not have any album?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT count(*) FROM ARTIST WHERE artistid NOT IN(SELECT artistid FROM ALBUM)

Cound the number of artists who have not released an album.

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Title FROM Album AS T1 JOIN Track AS T2 ON T1.AlbumId = T2.AlbumId JOIN Genre AS T3 ON T2.GenreID = T3.GenreID WHERE T3.Name = 'Reggae' INTERSECT SELECT T1.Title FROM Album AS T1 JOIN Track AS T2 ON T1.AlbumId = T2.AlbumId JOIN Genre AS T3 ON T2.GenreID = T3.GenreID WHERE T3.Name = 'Rock'

What are the album titles for albums containing both 'Reggae' and 'Rock' genre tracks?

chinook_1

CREATE TABLE `Album` ( `AlbumId` integer NOT NULL , `Title` varchar(160) NOT NULL , `ArtistId` integer NOT NULL , PRIMARY KEY (`AlbumId`) , CONSTRAINT `FK_AlbumArtistId` FOREIGN KEY (`ArtistId`) REFERENCES `Artist` (`ArtistId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Artist` ( `ArtistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`ArtistId`) ) CREATE TABLE `Customer` ( `CustomerId` integer NOT NULL , `FirstName` varchar(40) NOT NULL , `LastName` varchar(20) NOT NULL , `Company` varchar(80) DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) NOT NULL , `SupportRepId` integer DEFAULT NULL , PRIMARY KEY (`CustomerId`) , CONSTRAINT `FK_CustomerSupportRepId` FOREIGN KEY (`SupportRepId`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Employee` ( `EmployeeId` integer NOT NULL , `LastName` varchar(20) NOT NULL , `FirstName` varchar(20) NOT NULL , `Title` varchar(30) DEFAULT NULL , `ReportsTo` integer DEFAULT NULL , `BirthDate` datetime DEFAULT NULL , `HireDate` datetime DEFAULT NULL , `Address` varchar(70) DEFAULT NULL , `City` varchar(40) DEFAULT NULL , `State` varchar(40) DEFAULT NULL , `Country` varchar(40) DEFAULT NULL , `PostalCode` varchar(10) DEFAULT NULL , `Phone` varchar(24) DEFAULT NULL , `Fax` varchar(24) DEFAULT NULL , `Email` varchar(60) DEFAULT NULL , PRIMARY KEY (`EmployeeId`) , CONSTRAINT `FK_EmployeeReportsTo` FOREIGN KEY (`ReportsTo`) REFERENCES `Employee` (`EmployeeId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Genre` ( `GenreId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`GenreId`) ) CREATE TABLE `Invoice` ( `InvoiceId` integer NOT NULL , `CustomerId` integer NOT NULL , `InvoiceDate` datetime NOT NULL , `BillingAddress` varchar(70) DEFAULT NULL , `BillingCity` varchar(40) DEFAULT NULL , `BillingState` varchar(40) DEFAULT NULL , `BillingCountry` varchar(40) DEFAULT NULL , `BillingPostalCode` varchar(10) DEFAULT NULL , `Total` decimal(10,2) NOT NULL , PRIMARY KEY (`InvoiceId`) , CONSTRAINT `FK_InvoiceCustomerId` FOREIGN KEY (`CustomerId`) REFERENCES `Customer` (`CustomerId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `InvoiceLine` ( `InvoiceLineId` integer NOT NULL , `InvoiceId` integer NOT NULL , `TrackId` integer NOT NULL , `UnitPrice` decimal(10,2) NOT NULL , `Quantity` integer NOT NULL , PRIMARY KEY (`InvoiceLineId`) , CONSTRAINT `FK_InvoiceLineInvoiceId` FOREIGN KEY (`InvoiceId`) REFERENCES `Invoice` (`InvoiceId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_InvoiceLineTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `MediaType` ( `MediaTypeId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`MediaTypeId`) ) CREATE TABLE `Playlist` ( `PlaylistId` integer NOT NULL , `Name` varchar(120) DEFAULT NULL , PRIMARY KEY (`PlaylistId`) ) CREATE TABLE `PlaylistTrack` ( `PlaylistId` integer NOT NULL , `TrackId` integer NOT NULL , PRIMARY KEY (`PlaylistId`,`TrackId`) , CONSTRAINT `FK_PlaylistTrackPlaylistId` FOREIGN KEY (`PlaylistId`) REFERENCES `Playlist` (`PlaylistId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_PlaylistTrackTrackId` FOREIGN KEY (`TrackId`) REFERENCES `Track` (`TrackId`) ON DELETE NO ACTION ON UPDATE NO ACTION ) CREATE TABLE `Track` ( `TrackId` integer NOT NULL , `Name` varchar(200) NOT NULL , `AlbumId` integer DEFAULT NULL , `MediaTypeId` integer NOT NULL , `GenreId` integer DEFAULT NULL , `Composer` varchar(220) DEFAULT NULL , `Milliseconds` integer NOT NULL , `Bytes` integer DEFAULT NULL , `UnitPrice` decimal(10,2) NOT NULL , PRIMARY KEY (`TrackId`) , CONSTRAINT `FK_TrackAlbumId` FOREIGN KEY (`AlbumId`) REFERENCES `Album` (`AlbumId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackGenreId` FOREIGN KEY (`GenreId`) REFERENCES `Genre` (`GenreId`) ON DELETE NO ACTION ON UPDATE NO ACTION , CONSTRAINT `FK_TrackMediaTypeId` FOREIGN KEY (`MediaTypeId`) REFERENCES `MediaType` (`MediaTypeId`) ON DELETE NO ACTION ON UPDATE NO ACTION )

SELECT T1.Title FROM Album AS T1 JOIN Track AS T2 ON T1.AlbumId = T2.AlbumId JOIN Genre AS T3 ON T2.GenreID = T3.GenreID WHERE T3.Name = 'Reggae' INTERSECT SELECT T1.Title FROM Album AS T1 JOIN Track AS T2 ON T1.AlbumId = T2.AlbumId JOIN Genre AS T3 ON T2.GenreID = T3.GenreID WHERE T3.Name = 'Rock'

Find the titles of albums that contain tracks of both the Reggae and Rock genres.

chinook_1

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT customer_phone FROM available_policies

Find all the phone numbers.

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT customer_phone FROM available_policies

What are all the phone numbers?

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT customer_phone FROM available_policies WHERE policy_type_code = "Life Insurance"

What are the customer phone numbers under the policy "Life Insurance"?

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT customer_phone FROM available_policies WHERE policy_type_code = "Life Insurance"

What are the phone numbers of customers using the policy with the code "Life Insurance"?

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT policy_type_code FROM available_policies GROUP BY policy_type_code ORDER BY count(*) DESC LIMIT 1

Which policy type has the most records in the database?

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT policy_type_code FROM available_policies GROUP BY policy_type_code ORDER BY count(*) DESC LIMIT 1

Which policy type appears most frequently in the available policies?

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT customer_phone FROM available_policies WHERE policy_type_code = (SELECT policy_type_code FROM available_policies GROUP BY policy_type_code ORDER BY count(*) DESC LIMIT 1)

What are all the customer phone numbers under the most popular policy type?

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT customer_phone FROM available_policies WHERE policy_type_code = (SELECT policy_type_code FROM available_policies GROUP BY policy_type_code ORDER BY count(*) DESC LIMIT 1)

Find the phone numbers of customers using the most common policy type among the available policies.

insurance_fnol

CREATE TABLE Customers ( Customer_ID INTEGER NOT NULL, Customer_name VARCHAR(40), PRIMARY KEY (Customer_ID) ) CREATE TABLE Services ( Service_ID INTEGER NOT NULL, Service_name VARCHAR(40), PRIMARY KEY (Service_ID) ) CREATE TABLE Available_Policies ( Policy_ID INTEGER NOT NULL, policy_type_code CHAR(15), Customer_Phone VARCHAR(255), PRIMARY KEY (Policy_ID), UNIQUE (Policy_ID) ) CREATE TABLE Customers_Policies ( Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Date_Opened DATE, Date_Closed DATE, PRIMARY KEY (Customer_ID, Policy_ID), FOREIGN KEY (Customer_ID) REFERENCES Customers (Customer_ID), FOREIGN KEY (Policy_ID) REFERENCES Available_Policies (Policy_ID) ) CREATE TABLE First_Notification_of_Loss ( FNOL_ID INTEGER NOT NULL, Customer_ID INTEGER NOT NULL, Policy_ID INTEGER NOT NULL, Service_ID INTEGER NOT NULL, PRIMARY KEY (FNOL_ID), UNIQUE (FNOL_ID), FOREIGN KEY (Service_ID) REFERENCES Services (Service_ID), FOREIGN KEY (Customer_ID, Policy_ID) REFERENCES Customers_Policies (Customer_ID,Policy_ID) ) CREATE TABLE Claims ( Claim_ID INTEGER NOT NULL, FNOL_ID INTEGER NOT NULL, Effective_Date DATE, PRIMARY KEY (Claim_ID), UNIQUE (Claim_ID), FOREIGN KEY (FNOL_ID) REFERENCES First_Notification_of_Loss (FNOL_ID) ) CREATE TABLE Settlements ( Settlement_ID INTEGER NOT NULL, Claim_ID INTEGER, Effective_Date DATE, Settlement_Amount REAL, PRIMARY KEY (Settlement_ID), UNIQUE (Settlement_ID), FOREIGN KEY (Claim_ID) REFERENCES Claims (Claim_ID) )

SELECT policy_type_code FROM available_policies GROUP BY policy_type_code HAVING count(*) > 4

Find the policy type used by more than 4 customers.

insurance_fnol