Datasets:

Hexamind

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spider-clean-text-to-sql-3

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product_catalog

SELECT catalog_entry_name FROM catalog_contents WHERE product_stock_number LIKE "2%"

Find the names of all the products whose stock number starts with "2".

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name FROM catalog_contents WHERE product_stock_number LIKE "2%"

Which catalog contents have a product stock number that starts from "2"? Show the catalog entry names.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT t1.catalog_entry_name FROM Catalog_Contents AS t1 JOIN Catalog_Contents_Additional_Attributes AS t2 ON t1.catalog_entry_id = t2.catalog_entry_id WHERE t2.catalog_level_number = "8"

Find the names of catalog entries with level number 8.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT t1.catalog_entry_name FROM Catalog_Contents AS t1 JOIN Catalog_Contents_Additional_Attributes AS t2 ON t1.catalog_entry_id = t2.catalog_entry_id WHERE t2.catalog_level_number = "8"

What are the names of catalog entries with level number 8?

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name FROM catalog_contents WHERE LENGTH < 3 OR width > 5

Find the names of the products with length smaller than 3 or height greater than 5.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name FROM catalog_contents WHERE LENGTH < 3 OR width > 5

Which catalog contents have length below 3 or above 5? Find the catalog entry names.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT t1.attribute_name , t1.attribute_id FROM Attribute_Definitions AS t1 JOIN Catalog_Contents_Additional_Attributes AS t2 ON t1.attribute_id = t2.attribute_id WHERE t2.attribute_value = 0

Find the name and attribute ID of the attribute definitions with attribute value 0.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT t1.attribute_name , t1.attribute_id FROM Attribute_Definitions AS t1 JOIN Catalog_Contents_Additional_Attributes AS t2 ON t1.attribute_id = t2.attribute_id WHERE t2.attribute_value = 0

Which attribute definitions have attribute value 0? Give me the attribute name and attribute ID.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name , capacity FROM Catalog_Contents WHERE price_in_dollars > 700

Find the name and capacity of products with price greater than 700 (in USD).

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name , capacity FROM Catalog_Contents WHERE price_in_dollars > 700

Which catalog contents has price above 700 dollars? Show their catalog entry names and capacities.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT date_of_latest_revision FROM Catalogs GROUP BY date_of_latest_revision HAVING count(*) > 1

Find the dates on which more than one revisions were made.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT date_of_latest_revision FROM Catalogs GROUP BY date_of_latest_revision HAVING count(*) > 1

On which days more than one revisions were made on catalogs.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT count(*) FROM catalog_contents

How many products are there in the records?

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT count(*) FROM catalog_contents

Find the total number of catalog contents.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name FROM catalog_contents WHERE next_entry_id > 8

Name all the products with next entry ID greater than 8.

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

product_catalog

SELECT catalog_entry_name FROM catalog_contents WHERE next_entry_id > 8

What are the catalog entry names of the products with next entry ID above 8?

CREATE TABLE `Attribute_Definitions` ( `attribute_id` INTEGER PRIMARY KEY, `attribute_name` VARCHAR(30), `attribute_data_type` VARCHAR(10) ); CREATE TABLE `Catalogs` ( `catalog_id` INTEGER PRIMARY KEY, `catalog_name` VARCHAR(50), `catalog_publisher` VARCHAR(80), `date_of_publication` DATETIME, `date_of_latest_revision` DATETIME ); CREATE TABLE `Catalog_Structure` ( `catalog_level_number` INTEGER PRIMARY KEY, `catalog_id` INTEGER NOT NULL, `catalog_level_name` VARCHAR(50), FOREIGN KEY (`catalog_id` ) REFERENCES `Catalogs`(`catalog_id` ) ); CREATE TABLE `Catalog_Contents` ( `catalog_entry_id` INTEGER PRIMARY KEY, `catalog_level_number` INTEGER NOT NULL, `parent_entry_id` INTEGER, `previous_entry_id` INTEGER, `next_entry_id` INTEGER, `catalog_entry_name` VARCHAR(80), `product_stock_number` VARCHAR(50), `price_in_dollars` DOUBLE NULL, `price_in_euros` DOUBLE NULL, `price_in_pounds` DOUBLE NULL, `capacity` VARCHAR(20), `length` VARCHAR(20), `height` VARCHAR(20), `width` VARCHAR(20), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); CREATE TABLE `Catalog_Contents_Additional_Attributes` ( `catalog_entry_id` INTEGER NOT NULL, `catalog_level_number` INTEGER NOT NULL, `attribute_id` INTEGER NOT NULL, `attribute_value` VARCHAR(255) NOT NULL, FOREIGN KEY (`catalog_entry_id` ) REFERENCES `Catalog_Contents`(`catalog_entry_id` ), FOREIGN KEY (`catalog_level_number` ) REFERENCES `Catalog_Structure`(`catalog_level_number` ) ); INSERT INTO Attribute_Definitions (`attribute_id`, `attribute_name`, `attribute_data_type`) VALUES (1, 'Green', 'Bool') INSERT INTO Catalogs (`catalog_id`, `catalog_name`, `catalog_publisher`, `date_of_publication`, `date_of_latest_revision`) VALUES (1, 'Chocolate', 'Koepp-Rutherford handmade chocolate store', '2013-03-15 05:09:17', '2017-09-26 12:10:36') INSERT INTO Catalog_Structure (`catalog_level_number`, `catalog_id`, `catalog_level_name`) VALUES (1, 1, 'Category') INSERT INTO Catalog_Contents (`catalog_entry_id`, `catalog_level_number`, `parent_entry_id`, `previous_entry_id`, `next_entry_id`, `catalog_entry_name`, `product_stock_number`, `price_in_dollars`, `price_in_euros`, `price_in_pounds`, `capacity`, `length`, `height`, `width`) VALUES (1, 1, 5, 9, 7, 'Cola', '89 cp', '200.78', '159.84', '172.17', '1', '3', '9', '5') INSERT INTO Catalog_Contents_Additional_Attributes (`catalog_entry_id`, `catalog_level_number`, `attribute_id`, `attribute_value`) VALUES (5, 8, 4, '1')

flight_1

SELECT count(*) FROM Aircraft

How many aircrafts do we have?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(*) FROM Aircraft

How many aircrafts exist in the database?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT name , distance FROM Aircraft

Show name and distance for all aircrafts.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT name , distance FROM Aircraft

What are the names and distances for all airplanes?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT aid FROM Aircraft WHERE distance > 1000

Show ids for all aircrafts with more than 1000 distance.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT aid FROM Aircraft WHERE distance > 1000

What are the ids of all aircrafts that can cover a distance of more than 1000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(*) FROM Aircraft WHERE distance BETWEEN 1000 AND 5000

How many aircrafts have distance between 1000 and 5000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(*) FROM Aircraft WHERE distance BETWEEN 1000 AND 5000

What is the count of aircrafts that have a distance between 1000 and 5000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name , distance FROM Aircraft WHERE aid = 12

What is the name and distance for aircraft with id 12?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name , distance FROM Aircraft WHERE aid = 12

What is the name and distance for the aircraft that has an id of 12?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT min(distance) , avg(distance) , max(distance) FROM Aircraft

What is the minimum, average, and maximum distance of all aircrafts.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT min(distance) , avg(distance) , max(distance) FROM Aircraft

Return the minimum, average and maximum distances traveled across all aircrafts.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT aid , name FROM Aircraft ORDER BY distance DESC LIMIT 1

Show the id and name of the aircraft with the maximum distance.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT aid , name FROM Aircraft ORDER BY distance DESC LIMIT 1

What is the id and name of the aircraft that can cover the maximum distance?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name FROM Aircraft ORDER BY distance LIMIT 3

Show the name of aircrafts with top three lowest distances.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name FROM Aircraft ORDER BY distance LIMIT 3

What are the aircrafts with top 3 shortest lengthes? List their names.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name FROM Aircraft WHERE distance > (SELECT avg(distance) FROM Aircraft)

Show names for all aircrafts with distances more than the average.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name FROM Aircraft WHERE distance > (SELECT avg(distance) FROM Aircraft)

What are the names of all aircrafts that can cover more distances than average?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT count(*) FROM Employee

How many employees do we have?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(*) FROM Employee

What is the number of employees?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name , salary FROM Employee ORDER BY salary

Show name and salary for all employees sorted by salary.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name , salary FROM Employee ORDER BY salary

What is the name and salary of all employees in order of salary?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT eid FROM Employee WHERE salary > 100000

Show ids for all employees with at least 100000 salary.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT eid FROM Employee WHERE salary > 100000

What is the id of every employee who has at least a salary of 100000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT count(*) FROM Employee WHERE salary BETWEEN 100000 AND 200000

How many employees have salary between 100000 and 200000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT count(*) FROM Employee WHERE salary BETWEEN 100000 AND 200000

What is the number of employees that have a salary between 100000 and 200000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name , salary FROM Employee WHERE eid = 242518965

What is the name and salary for employee with id 242518965?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT name , salary FROM Employee WHERE eid = 242518965

What is the name and salary of the employee with the id 242518965?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT avg(salary) , max(salary) FROM Employee

What is average and maximum salary of all employees.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT avg(salary) , max(salary) FROM Employee

What is the average and largest salary of all employees?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT eid , name FROM Employee ORDER BY salary DESC LIMIT 1

Show the id and name of the employee with maximum salary.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT eid , name FROM Employee ORDER BY salary DESC LIMIT 1

What is the id and name of the employee with the highest salary?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT name FROM Employee ORDER BY salary ASC LIMIT 3

Show the name of employees with three lowest salaries.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT name FROM Employee ORDER BY salary ASC LIMIT 3

What is the name of the 3 employees who get paid the least?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT name FROM Employee WHERE salary > (SELECT avg(salary) FROM Employee)

Show names for all employees with salary more than the average.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT name FROM Employee WHERE salary > (SELECT avg(salary) FROM Employee)

What are the names of all employees who have a salary higher than average?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT eid , salary FROM Employee WHERE name = 'Mark Young'

Show the id and salary of Mark Young.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT eid , salary FROM Employee WHERE name = 'Mark Young'

What is the id and salary of the employee named Mark Young?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(*) FROM Flight

How many flights do we have?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(*) FROM Flight

What is the number of flights?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT flno , origin , destination FROM Flight ORDER BY origin

Show flight number, origin, destination of all flights in the alphabetical order of the departure cities.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT flno , origin , destination FROM Flight ORDER BY origin

What is the flight number, origin, and destination for all flights in alphabetical order by departure cities?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT flno FROM Flight WHERE origin = "Los Angeles"

Show all flight number from Los Angeles.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT flno FROM Flight WHERE origin = "Los Angeles"

What are the numbers of all flights coming from Los Angeles?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT origin FROM Flight WHERE destination = "Honolulu"

Show origins of all flights with destination Honolulu.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT origin FROM Flight WHERE destination = "Honolulu"

What are the origins of all flights that are headed to Honolulu?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT departure_date , arrival_date FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

Show me the departure date and arrival date for all flights from Los Angeles to Honolulu.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT departure_date , arrival_date FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

What are the departure and arrival dates of all flights from LA to Honolulu?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT flno FROM Flight WHERE distance > 2000

Show flight number for all flights with more than 2000 distance.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT flno FROM Flight WHERE distance > 2000

What are the numbers of all flights that can cover a distance of more than 2000?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT avg(price) FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

What is the average price for flights from Los Angeles to Honolulu.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT avg(price) FROM Flight WHERE origin = "Los Angeles" AND destination = "Honolulu"

What is the average price for flights from LA to Honolulu?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT origin , destination FROM Flight WHERE price > 300

Show origin and destination for flights with price higher than 300.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT origin , destination FROM Flight WHERE price > 300

What is the origin and destination for all flights whose price is higher than 300?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT flno , distance FROM Flight ORDER BY price DESC LIMIT 1

Show the flight number and distance of the flight with maximum price.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT flno , distance FROM Flight ORDER BY price DESC LIMIT 1

What is the flight number and its distance for the one with the maximum price?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT flno FROM Flight ORDER BY distance ASC LIMIT 3

Show the flight number of flights with three lowest distances.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT flno FROM Flight ORDER BY distance ASC LIMIT 3

What are the numbers of the shortest flights?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT avg(distance) , avg(price) FROM Flight WHERE origin = "Los Angeles"

What is the average distance and average price for flights from Los Angeles.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT avg(distance) , avg(price) FROM Flight WHERE origin = "Los Angeles"

What is the average distance and price for all flights from LA?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT origin , count(*) FROM Flight GROUP BY origin

Show all origins and the number of flights from each origin.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT origin , count(*) FROM Flight GROUP BY origin

For each origin, how many flights came from there?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT destination , count(*) FROM Flight GROUP BY destination

Show all destinations and the number of flights to each destination.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT destination , count(*) FROM Flight GROUP BY destination

What are the destinations and number of flights to each one?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT origin FROM Flight GROUP BY origin ORDER BY count(*) DESC LIMIT 1

Which origin has most number of flights?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT origin FROM Flight GROUP BY origin ORDER BY count(*) DESC LIMIT 1

What place has the most flights coming from there?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT destination FROM Flight GROUP BY destination ORDER BY count(*) LIMIT 1

Which destination has least number of flights?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT destination FROM Flight GROUP BY destination ORDER BY count(*) LIMIT 1

What destination has the fewest number of flights?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT T2.name FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid WHERE T1.flno = 99

What is the aircraft name for the flight with number 99

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T2.name FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid WHERE T1.flno = 99

What is the name of the aircraft that was on flight number 99?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT T1.flno FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid WHERE T2.name = "Airbus A340-300"

Show all flight numbers with aircraft Airbus A340-300.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT T1.flno FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid WHERE T2.name = "Airbus A340-300"

What are the flight numbers for the aircraft Airbus A340-300?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT T2.name , count(*) FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid GROUP BY T1.aid

Show aircraft names and number of flights for each aircraft.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

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SELECT T2.name , count(*) FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid GROUP BY T1.aid

What is the name of each aircraft and how many flights does each one complete?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T2.name FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid GROUP BY T1.aid HAVING count(*) >= 2

Show names for all aircraft with at least two flights.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T2.name FROM Flight AS T1 JOIN Aircraft AS T2 ON T1.aid = T2.aid GROUP BY T1.aid HAVING count(*) >= 2

What are the names for all aircrafts with at least 2 flights?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(DISTINCT eid) FROM Certificate

How many employees have certificate.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT count(DISTINCT eid) FROM Certificate

What is the count of distinct employees with certificates?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT eid FROM Employee EXCEPT SELECT eid FROM Certificate

Show ids for all employees who don't have a certificate.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT eid FROM Employee EXCEPT SELECT eid FROM Certificate

What are the ids of all employees that don't have certificates?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T3.name FROM Employee AS T1 JOIN Certificate AS T2 ON T1.eid = T2.eid JOIN Aircraft AS T3 ON T3.aid = T2.aid WHERE T1.name = "John Williams"

Show names for all aircrafts of which John Williams has certificates.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T3.name FROM Employee AS T1 JOIN Certificate AS T2 ON T1.eid = T2.eid JOIN Aircraft AS T3 ON T3.aid = T2.aid WHERE T1.name = "John Williams"

What are the names of all aircrafts that John Williams have certificates to be able to fly?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T1.name FROM Employee AS T1 JOIN Certificate AS T2 ON T1.eid = T2.eid JOIN Aircraft AS T3 ON T3.aid = T2.aid WHERE T3.name = "Boeing 737-800"

Show names for all employees who have certificate of Boeing 737-800.

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')

flight_1

SELECT T1.name FROM Employee AS T1 JOIN Certificate AS T2 ON T1.eid = T2.eid JOIN Aircraft AS T3 ON T3.aid = T2.aid WHERE T3.name = "Boeing 737-800"

What are the names of all employees who have a certificate to fly Boeing 737-800?

create table flight( flno number(4,0) primary key, origin varchar2(20), destination varchar2(20), distance number(6,0), departure_date date, arrival_date date, price number(7,2), aid number(9,0), foreign key("aid") references `aircraft`("aid")); create table aircraft( aid number(9,0) primary key, name varchar2(30), distance number(6,0)); create table employee( eid number(9,0) primary key, name varchar2(30), salary number(10,2)); create table certificate( eid number(9,0), aid number(9,0), primary key(eid,aid), foreign key("eid") references `employee`("eid"), foreign key("aid") references `aircraft`("aid")); INSERT INTO flight (FLNO, origin, destination, distance, departure_date, arrival_date, price,aid) VALUES (99.0,'Los Angeles','Washington D.C.',2308.0,'04/12/2005 09:30','04/12/2005 09:40',235.98, 1) INSERT into aircraft (AID,name,distance) values ('1','Boeing 747-400','8430') INSERT into employee (EID,name,salary) values ('242518965','James Smith','120433') INSERT into certificate (EID,AID) values ('11564812','2')