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1
00:00:20,480 --> 00:00:23,740
ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ูŠูˆู… ุฑุงุญ ู†ูƒู…ู„ ุนู„ู‰ ูƒู„ุงู…ู†ุง

2
00:00:23,740 --> 00:00:26,720
ููŠ ุงู„ chapter ุชุจุน ุงู„ normalization ุฑุงุญ ู†ุชูƒู„ู… ุนู† ุงู„

3
00:00:26,720 --> 00:00:30,760
second normal form ูˆ ุฑุงุญ ู†ุญูƒูŠ ุจุฏุงูŠุฉ ู…ู† ุงู„ example

4
00:00:30,760 --> 00:00:34,060
ุงู„ู„ูŠ ู‡ู†ุง ููŠู‡ ุงู„ู…ุญุงุถุฑุฉ ุงู„ู…ุงุถูŠุฉ ุงู† ุดุงุก ุงู„ู„ู‡ ูˆ ู†ุดูˆู

5
00:00:34,060 --> 00:00:37,800
ูƒูŠู ุจู†ูˆุตู„ ู„ second normal form ููŠ ุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูˆ ุงู„

6
00:00:37,800 --> 00:00:40,380
primary key ูƒุงู† ุนู†ุฏูŠ ุงู„ full name ุงู„ model full

7
00:00:40,380 --> 00:00:46,860
name ู‡ูˆ ุงู„ primary key ุจุฏูŠ

8
00:00:46,860 --> 00:00:51,260
ุฃุฑู…ุฒ ุฏู‡ ู‡ุฐุง ุงู„ column ุจุฏูŠ ุฃุฑู…ุฒู‡ ุจุงู„ุญุฑู Fู‡ุฐุง ุงู„ู€ C

9
00:00:51,260 --> 00:00:56,200
ุงู„ู„ูŠ ู‡ูˆ ุงู„ country ุงู„ model M ุงู„ manufacturing

10
00:00:56,200 --> 00:01:01,100
ุฎู„ูŠู†ูŠ ุฃุณู…ูŠู‡ man ุงุฎุชุตุงุฑู‡ man ุชู…ุงู…ุŸ ู…ูŠู† ูƒุงู† ุนู†ุฏู‰ ุงู„

11
00:01:01,100 --> 00:01:05,180
primary key ุงู„ fullุŸ ูƒุงู† ูŠุนุทูŠู†ู‰ ุจู‚ูŠุฉ ุงู„ columns

12
00:01:05,180 --> 00:01:09,540
ุงู„ู„ูŠ ู‡ู… ุงู„ manufacturer ุงู„ู…ุตู†ุน ูˆ ุงู„ model ูˆ ุงู„

13
00:01:09,540 --> 00:01:14,800
country ูˆ ููŠู‡ ูƒุงู† ุนู†ุฏู‰ ุงู„ manufacturer ู…ุน ุงู„ model

14
00:01:14,800 --> 00:01:21,010
candidate key candidate key ู…ู†ู‡ู… ู…ู…ูƒู† ุฃุนุฑูุงู„ุจู‚ูŠุฉ

15
00:01:21,010 --> 00:01:24,150
ุงู„ country ูˆ ุงู„ full name ุงุตู„ุง ุทู„ุนูˆุง ุงู„ full name

16
00:01:24,150 --> 00:01:30,210
ูƒูŠู ู…ูƒูˆู† ุงุณู… ุงู„ู…ุตู†ุน ู…ุน ุงุณู… ุงู„ู…ู†ุชุฌ ุงู„ู…ูˆุฏูŠู„ ู…ุฌู…ุนูŠู†ู‡ู…

17
00:01:30,210 --> 00:01:34,810
ู…ุน ุจุนุถ ุนุงู…ู„ูŠู† ู…ู†ู‡ู… ุงู„ full name ูู‡ุฏูˆู„ ุงุชู†ูŠู† ู…ุน ุจุนุถ

18
00:01:34,810 --> 00:01:43,630
manufacturer ู…ุน ุงู„ู…ูˆุฏูŠู„ ุจูŠุนุทูˆู†ูŠ ุงู„ full name ูˆ ุงู„

19
00:01:43,630 --> 00:01:48,350
countryู‡ูŠ primary key ูˆู‡ูŠ candidate key ูˆููŠ ุนู†ุฏูŠ

20
00:01:48,350 --> 00:01:53,010
ูƒู…ุงู† dependency ุงู„ู„ูŠ ู‡ูŠ ุฃู† ุงู„ู…ุตู†ุน ู…ู†ู‡ ุจุนุฑู ุงู„ุจู„ุฏ

21
00:01:53,010 --> 00:01:59,410
ุงู„ู…ู†ุดุฃ ุงู„ country ูุงู†ุง ู…ู† manufacturer ุจุนุฑู ู…ูŠู†

22
00:01:59,410 --> 00:02:04,470
ุจุนุฑู ุงู„ country ุญูƒูŠู†ุง partial functional

23
00:02:04,470 --> 00:02:08,730
dependency ูŠุนู†ูŠ ูŠูƒูˆู† ููŠ ุนู†ุฏูŠ column ุจุนุชู…ุฏ ุนู„ู‰ ุฌุฒุก

24
00:02:08,730 --> 00:02:12,560
ู…ู† ุงู„ primary key ุฃูˆ ุงู„ candidate keyู„ูˆ ุทู„ุนู†ุง ุนู„ู‰

25
00:02:12,560 --> 00:02:15,340
ุงู„dependency ู‡ุฐู‡ ุงู„ูˆุงุญุฏุฉ ู‡ุฐู‡ ุงู„ู„ูŠ ููŠู‡ุง ุงู„ู…ุดูƒู„ุฉ

26
00:02:15,340 --> 00:02:21,560
ู†ู„ุงู‚ูŠ ุฃู† ุงู„ C ุจุชุนุชู…ุฏ ุนู„ู‰ ุงู„ู…ุตู†ุน ุงู„ manufacturer

27
00:02:21,560 --> 00:02:25,980
ุงู„ู„ูŠ ู‡ูˆ ุฃุตู„ุง ุฌุฒุก ู…ู† candidate key ู…ุด ุงู„ candidate

28
00:02:25,980 --> 00:02:30,740
key ูƒุงู…ู„ ุฌุฒุก ู…ู†ู‡ ู‡ุงูŠ ุจุฏุฃ ุชุฎู„ุต ู…ู†ู‡ุง ุฅุฐุง ุชุฎู„ุต ู…ู†ู‡ุง

29
00:02:30,740 --> 00:02:40,010
ุจูƒูˆู† ุฃู†ุง ุญู‚ู‚ุช ุงู„ second normal form ุชู…ุงู…ุŸ ุทูŠุจุฅุฐุง

30
00:02:40,010 --> 00:02:44,370
ุงู„ second normal form ุงู„ู„ูŠ ุฃุฎุฏู†ุงู‡ุง ุงู„ู…ุฑุฉ ุงู„ู…ุงุถูŠุฉ

31
00:02:44,370 --> 00:02:48,730
ุจุชุนุชู…ุฏ ุนู„ู‰ ุงู† ุงุชุฎู„ุต ู…ู† ุงู„ partial functional

32
00:02:48,730 --> 00:02:51,810
dependences partial functional dependences ูŠุนู†ูŠ

33
00:02:51,810 --> 00:02:55,610
ุงุนุชู…ุงุฏ ุงุญุฏ ุงู„ columns ุงู„ none prime ุชุชุฐูƒุฑูˆุง ู„ู…ุง

34
00:02:55,610 --> 00:02:58,910
ุญูƒูŠู†ุง ูƒู„ู…ุฉ none prime ุงู„ none prime columns ุงู†

35
00:02:58,910 --> 00:03:02,950
ูŠูƒูˆู† ุจูŠุนุชู…ุฏ ุนู„ู‰ ุฌุฒุก ู…ู† candidate key ุทูŠุจ ุนุดุงู† ู†ุฑุฏ

36
00:03:02,950 --> 00:03:05,310
ูˆ ู†ุฃูƒุฏ ุงู„ู…ุนู„ูˆู…ุฉ ุงูŠุด ุนู† none prime column

37
00:03:09,120 --> 00:03:13,360
ุฅูŠุด ูŠุนู†ูŠ non-prime ูƒู„ูˆู…ุŸ

38
00:03:13,360 --> 00:03:24,660
ุงู„ู€ non-prime attributes ู‡ูˆ ุฃูŠ ูƒู„ูˆู… ู…ุด ุฌุฒุก ู„ุง ู…ู†

39
00:03:24,660 --> 00:03:28,280
ุงู„ primary key ูˆู„ุง ู…ู† ุฃูŠ candidate key ุงุณู…ู‡ non

40
00:03:28,280 --> 00:03:36,000
-prime ู‡ุฐู‡ ุชุนุฑูŠูู‡ ุชุนุฑูŠู ูุงุฏุน ุงู„ู„ูŠ ุจู†ุญูุธู‡ ุงู„ non

41
00:03:36,000 --> 00:03:41,720
-prime attribute non-prime columnnon-prime

42
00:03:41,720 --> 00:03:45,700
attribute non-prime ูƒู„ู‡ู… ู‡ูˆ ุนุจุงุฑุฉ ุนู† ูƒู„ู‡ู… ููŠ ุงู„

43
00:03:45,700 --> 00:03:51,380
relation ู…ุด ุฌุฒุก ู…ู† ุฃูŠ candidate key ุจู…ุง ููŠู‡ู… ุงู„

44
00:03:51,380 --> 00:03:53,500
primary key ู„ุฃู† ุงู„ primary key ุฃุตู„ุง candidate key

45
00:03:53,500 --> 00:03:57,560
ุฅุฐุง ูƒุงู† ุงู„ ูƒู„ู‡ู… ู…ุด primary key ูˆู„ุง ุฌุฒุก ู…ู†

46
00:03:57,560 --> 00:04:01,720
candidate key ูู‡ูˆ ู…ุจุงุดุฑุฉ non-prime ุงู„ non-prime

47
00:04:01,720 --> 00:04:05,520
ู‡ุฐุง ู…ุงุจุฏูˆุด ูŠูƒูˆู† partially dependent ุนู„ู‰ candidate

48
00:04:05,520 --> 00:04:10,260
key ู„ุงุฒู… ูŠูƒูˆู†ุฅุฐุง ุจุฏุฃุช ุนู„ู‰ candidate key ุจุดูƒู„ ูƒุงู…ู„

49
00:04:10,260 --> 00:04:15,560
ุงู„ whole candidate key ู†ุนุจุฑ ุนู†ู‡ุง ููŠ ุงู„ุณุทุฑ ู‡ุฐุง ู„ุงุฒู…

50
00:04:15,560 --> 00:04:19,620
ุงู„ none prime none prime attributes ูŠุนุชู…ุฏ ุนู„ู‰ ู…ูŠู†

51
00:04:19,620 --> 00:04:25,160
ุงู„ whole ูƒุงู…ู„ whole of every candidate key ุนู„ู‰

52
00:04:25,160 --> 00:04:30,740
partial ู„ุฃ ุฅุฐุง ูƒุงู† ุจูŠุนุชู…ุฏ ุนู„ู‰ partial ุจุงุฎุฏู‡ ู‡ูˆ ูˆ

53
00:04:30,740 --> 00:04:33,220
ุงู„ partial ุงู„ู„ูŠ ุจูŠุนุชู…ุฏ ุนู„ูŠู‡ ุจุญุทู‡ู… ููŠ relation

54
00:04:33,220 --> 00:04:38,590
ู„ุญุงู„ู‡ ู†ุฑุฌุน ู„ู„ู…ุซุงู„ ุงู„ู„ูŠ ูƒุงู† ุนู†ุฏู†ุงุนู†ุฏูŠ ุงู„

55
00:04:38,590 --> 00:04:42,170
manufacturing ุจุงุนุทูŠู†ูŠ ุงู„ country ุงู„ country ูˆ ุงุญู†ุง

56
00:04:42,170 --> 00:04:44,650
ุงู„ manufacturing ู‡ุฐู‡ ุฌุฒุก ู…ู† candidate key ู‡ูŠ ุงู„

57
00:04:44,650 --> 00:04:48,210
manufacturing ู…ุน ุงู„ู…ูˆุฏูŠู„ candidate key ุงุฐุง ุตุงุฑ ุงู„

58
00:04:48,210 --> 00:04:53,170
c high ุจุชุนุชู…ุฏ ูุนู„ูŠุง ู…ุด ุนู„ู‰ ุงู„ key ูƒู„ู‡ ุนู„ู‰ ุฌุฒุก ู…ู†ู‡

59
00:04:53,170 --> 00:04:58,170
ุจุณ ุจุชุฎู„ุต ู…ู†ู‡ุง ูุงุจุฏุฃ ุงุฎุฏ ู‡ุฐู‡ ูˆ ุงุนู…ู„ู‡ุง ููŠ table

60
00:04:58,170 --> 00:05:02,470
ู„ุญุงู„ู‡ุง ููŠ relation ู„ุญุงู„ู‡ุง ุจุนุฏ ู…ุง ู†ุญุทู‡ุง ููŠ relation

61
00:05:02,470 --> 00:05:07,140
ู„ุญุงู„ู‡ุง ุจุฏุง ู†ุฑุจุทู‡ุง ู…ุน ู…ูŠู† ู…ุน ุงู„ู„ูŠ ุจูŠุถู„ูˆุงุตุญ ุงู„

62
00:05:07,140 --> 00:05:11,120
primary key ุชุจุนู‡ุง ู‡ูŠูƒูˆู† ุงู„ manufacturer ูู„ุงุฒู… ุงู„

63
00:05:11,120 --> 00:05:14,140
manufacturer ุฃูƒุฑุฑ ูˆูŠู† ููŠ ุงู„ุนู„ุงู‚ุฉ ุงู„ุฃุตู„ูŠุฉ ูƒ foreign

64
00:05:14,140 --> 00:05:20,560
ูƒ foreign key ู‡ุงูŠ ุดูƒู„ู‡ู… ู‡ุงูŠ ุงู„ two tables ุงู„ู„ูŠ

65
00:05:20,560 --> 00:05:26,400
ู‡ูŠุตูŠุฑูˆุง ุนู†ุฏู‰ ุฌูŠุจู†ุง

66
00:05:26,400 --> 00:05:29,920
ุงู„ manufacturer ู…ุน ุงู„ countryุงู„ู„ูŠ ูƒุงู†ุช partial

67
00:05:29,920 --> 00:05:33,260
functional dependency ุจู…ุง ุฃู†ู‡ ุงู„ manufacturer ู‡ูˆ

68
00:05:33,260 --> 00:05:37,000
ุงู„ primary key ู‡ุงุฎุฏู‡ ูˆุญุทู‡ ููŠ ุงู„ relation ุงู„ุชุงู†ูŠุฉ

69
00:05:37,000 --> 00:05:43,120
ูƒุงุด ูƒ foreign key ู‡ูŠ ู…ูˆุฌูˆุฏ ูƒ foreign key ูˆุจู‚ูŠุฉ ุงู„

70
00:05:43,120 --> 00:05:46,980
columns ุงู„ู„ูŠ ุถุงู„ูˆุง ุนู†ุฏู†ุง ุจู†ุฎู„ูŠู‡ู… ุฒูŠ ู…ุง ู‡ู… ู‡ูŠูƒ

71
00:05:46,980 --> 00:05:50,640
ุงุชุฎู„ุตู†ุง ู…ู† ุงู„ partial functional dependency ุตุงุฑุช

72
00:05:50,640 --> 00:05:54,120
ุนู†ุฏู‰ ููŠ second normal formู‡ู„ ูู‰ ุนู†ุฏูŠ multi value

73
00:05:54,120 --> 00:05:57,920
attributes ุงุฐุง ุงู†ุง ุงูƒูŠุฏ ููŠ ุงู„ first normal form ูู‰

74
00:05:57,920 --> 00:06:00,960
ุนู†ุฏูŠ ุถุงูŠู„ ุจุนุฏ ุงู„ุชุบูŠูŠุฑ ุงู„ู„ู‰ ุญูˆู„ู†ุง ุถุงูŠู„ ุนู†ุฏูŠ partial

75
00:06:00,960 --> 00:06:05,180
functional dependencies ู„ุฃ ู…ุงุถู„ุด ุจุนุฏ ุงู„ุชุญูˆูŠู„ ู‡ุฐุง

76
00:06:05,180 --> 00:06:09,900
ุงู„ู„ู‰ ุนู…ู„ู†ุง ู…ุงุถู„ ูุตูˆุฑู†ุง ุงุฐุง ุงุญู†ุง ููŠ second normal

77
00:06:09,900 --> 00:06:15,000
form ู„ุงู† ุนุดุงู† ุงุฑูˆุญ ุนู„ู‰ ุงู„ third normal form ุงู„

78
00:06:15,000 --> 00:06:18,980
second normal form ุจุชุญุงุฑุจ ุงู„ partial functional

79
00:06:18,980 --> 00:06:22,740
dependency ุงู„ third normal form ุจุชุญุงุฑุจู„ู€

80
00:06:22,740 --> 00:06:25,560
Transitive Functional Dependency ุฅูŠุด ูŠุนู†ูŠ

81
00:06:25,560 --> 00:06:32,480
TransitiveุŸ ุฅู†ู‡ ุฃู†ุง ุนู†ุฏูŠ A ุจุชุนุทูŠู†ูŠ B ูˆ ูŠูƒูˆู† ุนู†ุฏูŠ B

82
00:06:32,480 --> 00:06:39,540
ุจุชุนุทูŠู†ูŠ C ุจุงุฌูŠ ุจุญูƒูŠ ุฅู†ู‡ A ุจุชุนุทูŠู†ูŠ C ุจุณ ุจุทุฑูŠู‚ุฉ

83
00:06:39,540 --> 00:06:43,660
ู…ู‡ู„ู‡ุง indirect ู…ุด ู…ุจุงุดุฑุฉ Transitive ุฃูˆ Transparent

84
00:06:43,660 --> 00:06:46,420
indirect ุบูŠุฑ ู…ุจุงุดุฑ

85
00:06:48,830 --> 00:06:53,790
ุชู…ุงู…ุŸ ุฃู†ุง ู„ู…ุง ุจุนุฑู ู…ุซู„ุง ุฑู‚ู… ุงู„ุทุงู„ุจ ู…ู…ูƒู† ุฃุนุฑู ุฑู‚ู…

86
00:06:53,790 --> 00:06:57,850
ู‡ูˆูŠุชู‡ ูˆุฅุฐุง ุนุฑูุช ุฑู‚ู… ู‡ูˆูŠุชู‡ ู…ู…ูƒู† ู…ุซู„ุง ุนู†ุฏ ุดุฑูƒุฉ ุฌูˆุงู„

87
00:06:57,850 --> 00:07:03,090
ุฃุนุฑู ุฑู‚ู… ุฌูˆุงู„ู‡ ูุฅุฐุง ุฃู†ุง ู…ู† ุฑู‚ู… ุงู„ุทุงู„ุจ ู…ู…ูƒู† ุฃุนุฑู

88
00:07:03,090 --> 00:07:09,790
ุฑู‚ู… ุงู„ุฌูˆุงู„ ู„ูƒู† ู…ุด .. ู…ุด ู…ุจุงุดุฑ ููŠ .. ููŠ ูƒู„ู… ูˆุณูŠุท ููŠ

89
00:07:09,790 --> 00:07:12,250
ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุงู„ู…ุซุงู„ ุงู„ู„ูŠ ุฃู†ุง ุนู…ู„ุชู‡ ู…ู† ุงู„ูƒู„ู… ุงู„ูˆุณูŠุท

90
00:07:16,400 --> 00:07:19,720
ูุฃุญู†ุง ุฃูŠ ุนู„ุงู‚ุฉ ุจู‡ุฐุง ุงู„ุดูƒู„ a ุจุชุนุทูŠู†ูŠ c transitive

91
00:07:19,720 --> 00:07:26,120
ุจุชุฎู„ุต ู…ู†ู‡ุง ุฅุฐุง ุชุฎู„ุต ู…ู†ู‡ุง ุจุญู‚ู‚ ุงู„ third normal form

92
00:07:26,120 --> 00:07:33,820
ุชุนุงู„ูˆุง ู†ุดูˆู ู…ุซุงู„ third normal form ุฒูŠ ู…ุง ุญูƒูŠู†ุง ู†ูˆุน

93
00:07:33,820 --> 00:07:36,840
ู…ู† ุฃู†ูˆุงุน ุงู„ normalization ู„ุงุฒู… ุชูƒูˆู† ุงู„ relation

94
00:07:36,840 --> 00:07:41,030
ุนู†ุฏู‰ ููŠ second normal formุนุดุงู† ุญุงูƒูŠู†ุง ุงู„

95
00:07:41,030 --> 00:07:44,670
normalization levels ู„ุงุฒู… ุงูƒูˆู† ุงู†ุง ุงุตู„ุง ููŠ ุงู„ุณูƒู† ูˆ

96
00:07:44,670 --> 00:07:47,890
ุงุฑูˆุญ ุงุดูŠู„ ู…ูŠู† ู„ transitive ุงูŠุด ุนู† ุงู„ transitive

97
00:07:47,890 --> 00:07:51,330
ูŠุนู†ูŠ ุงู†ู‡ ู…ุงูŠุถู„ุด ุนู†ุฏู‰ ูˆู„ุง non-prime attribute ู†ุฑุฌุน

98
00:07:51,330 --> 00:07:53,770
ู†ุญูƒูŠ ุนู† ุงู„ non-prime attributes ุงู„ู„ูŠ ู‡ู… columns

99
00:07:53,770 --> 00:07:59,270
ู…ุงู„ู‡ู… ูŠู„ุง ู…ูŠู† ุนูŠุฏ ุงู„ุชุนุฑูŠู ู…ุด ุฌุฒุก ู…ู† ุงูŠ candidate

100
00:07:59,270 --> 00:08:02,670
key ุงูˆ primary key ุชู…ุงู… ู‡ุฏูˆู„ ุงู„ columns ุงู„ non

101
00:08:02,670 --> 00:08:07,410
-prime ู…ุด ู„ุงุฒู… ุชูƒูˆู† ุนู„ุงู‚ุชู‡ู…transitively dependent

102
00:08:07,410 --> 00:08:12,890
ุนู„ู‰ ุฃูŠ key ุนู„ู‰ ุฃูŠ candidate key ู„ R ุฃูŠ candidate

103
00:08:12,890 --> 00:08:16,750
key ุนู†ุฏูŠ ู„ R ุฃูŠ key ู„ R ุนู„ุงู‚ุฉ ู‡ุฏูˆู„ ุงู„ non-prime

104
00:08:16,750 --> 00:08:22,990
ู…ุนุงู‡ ู…ุด ู„ุงุฒู… ุชูƒูˆู† ุจุงู„ุดูƒู„ ู‡ุฐุง ุงู†ู‡ ููŠ ูˆุณูŠุท ุจูŠู†ู‡ู…

105
00:08:22,990 --> 00:08:32,680
ู…ุซุงู„ ููŠ ุนู†ุฏูŠ ู…ุซุงู„ ุงู„ู„ูŠ ู‡ูˆ ู…ุณุงุจู‚ุงุช ุฑูŠุงุถูŠุฉ tormentููŠ

106
00:08:32,680 --> 00:08:36,280
ุณู†ูˆุงุช ุงู„ู…ุณุงุจู‚ุฉ ู…ุด ูƒู„ ุณู†ุฉ ุจูŠุนูŠุฏูˆู‡ุง ูุงู„ู…ุณุงุจู‚ุฉ

107
00:08:36,280 --> 00:08:39,480
ุงู„ูู„ุงู†ูŠุฉ ุณู†ุฉ ูƒุฐุง ู…ูŠู† ุงู„ูุงุฆุฒ ุงู„ winnerุŸ ุงู„ุดุฎุต ู‡ูˆ

108
00:08:39,480 --> 00:08:43,480
ุงู„ู„ูŠ ูƒุงู† ูุงุฆุฒ ูˆููŠ ุนู†ุฏู‰ ุชุงุฑูŠุฎ ู…ูŠู„ุงุฏ ุงู„ูุงุฆุฒ ุงู„ุดุฎุต

109
00:08:43,480 --> 00:08:50,980
ุงู„ูุงุฆุฒ ุงูˆู„ ุดูŠุก ูˆูŠู† ุงู„ key ููŠ ุงู„ุฌุฏูˆู„ ู‡ุฐุง ุงู„ุณู†ุฉ ู…ุน

110
00:08:50,980 --> 00:08:58,330
ู…ุน ุงู„ู…ุณุงุจู‚ุฉู‡ูŠ ุงู„ key ุฃู†ุง ุงู„ู…ุณุงุจู‚ุฉ ุงู„ูˆุญุฏุฉ ู…ุงู‚ุฏุฑุด

111
00:08:58,330 --> 00:09:01,190
ุฃุญูƒูŠ ุฃู† ุงู„ู…ุณุงุจู‚ุฉ ุงู„ูู†ุงู†ูŠุฉ ูุงุฒ ููŠู‡ุง ูู„ุงู† ู„ุฃู† ููŠ ูƒู„

112
00:09:01,190 --> 00:09:05,250
ุณู†ุฉ ููŠ ูุงุฆุฒ ู…ุฎุชู„ู ูˆุจุงู„ุชุงู„ูŠ ุงู„ู…ุณุงุจู‚ุฉ ู…ุน ุงู„ุณู†ุฉ

113
00:09:05,250 --> 00:09:10,630
ุชุนุทูŠู†ูŠ ุจุงู‚ูŠ ุงู„ู…ุนู„ูˆู…ุงุช ุชุนุทูŠู†ูŠ ู…ู† ุงู„ูุงุฆุฒ ูˆุชุงุฑูŠุฎ

114
00:09:10,630 --> 00:09:14,150
ู…ูŠู„ุงุฏู‡ ู„ูƒู† ู‡ู„ ูุนู„ูŠุง ุชุงุฑูŠุฎ ู…ูŠู„ุงุฏ ุงู„ูุงุฆุฒ ุจุนุชู…ุฏ

115
00:09:14,150 --> 00:09:19,490
ู…ุจุงุดุฑุฉ ุนู„ู‰ุน ุงู„ year ูˆ ู„ุง ุจุชุนุชู…ุฏ ูุนู„ูŠุง ูุนู„ูŠุง ุจุชุนุชู…ุฏ

116
00:09:19,490 --> 00:09:23,770
ุน ุงู„ูุงุฆุฒ ูู‡ุฐู‡ ุงู„ ูˆุณูŠุท ู‡ุฐุง ุงู„ column ุงู„ ูˆุณูŠุท ุงู„

117
00:09:23,770 --> 00:09:26,450
winner ู‡ูˆ ุงู„ column ุงู„ ูˆุณูŠุท ุชุนุงู„ู‰ ู†ุดูˆู ุงูŠุด ุงู„

118
00:09:26,450 --> 00:09:30,230
dependencies ุงู„ู„ูŠ ุนู†ุฏูŠ ุงู„ torment ุงู„ู„ูŠ ู‡ูŠ ุงู„ T

119
00:09:30,230 --> 00:09:35,310
ุงู„ู…ุณุงุจู‚ุฉ ุงู„ while year ุจุชุนุทูŠู†ูŠ ุงู„ winner ูˆ ุงู„ day

120
00:09:35,310 --> 00:09:39,930
of birth ุชุจุนู‡ ู„ูƒู† ุงู†ุง ูุนู„ูŠุง ุนู†ุฏูŠ ุงู„ D ููŠ ุงู„ุฃุตู„

121
00:09:39,930 --> 00:09:44,270
ุจุชุนุชู…ุฏ ุน ุงู„ winnerูู‡ูŠ ุงู„ู„ูŠ transit ููŠู‡ุง ูˆู‡ูŠ ุจุฏุฃ

122
00:09:44,270 --> 00:09:47,830
ุชุฎู„ุต ู…ู†ู‡ุง ู‡ุงุฎุฏู‡ุง ุฏูŠ ูˆ ุงุญุทู‡ุง ูˆูŠู†ุŸ ููŠ table ู„ุญุงู„

123
00:09:47,830 --> 00:09:51,550
ุงุญู†ุง ูƒู„ ุดุบู„ ู„ุฃู†ู‡ ุงู„ุงุดูŠ ุงู„ู„ูŠ ุจุบู„ุจู†ุง ุงุดูŠ ุงู„ู„ูŠ ู†ุฑูˆุญ

124
00:09:51,550 --> 00:09:55,790
ู†ุนู…ู„ ููŠู‡ ููŠ ุฌุฏูˆู„ ู„ุญุงู„ decomposition ุงู„ relation ุฏูŠ

125
00:09:55,790 --> 00:09:59,430
ุญูˆู„ู‡ุง ู„ู…ุฌู…ูˆุนุฉ relations ูู‡ุงุฎุฏ ู‡ุฏูˆู„ ููŠ relation ุงู„

126
00:09:59,430 --> 00:10:04,310
W ู…ุน ุงู„ D ู…ูŠู† ู‡ูŠุธู„ ุนู†ุฏู‰ุŸ ู‡ุงูŠ ุฃุฎุฏุช ู‡ุฏูˆู„ ููŠ relation

127
00:10:04,310 --> 00:10:08,570
ู…ูŠู† ุธู„ุŸ ุงู„ T ูˆ ุงู„ Y ูƒูŠู ุฏู‡ ุฑุจุท ุจูŠู†ู‡ู…ุŸ ู‡ุงูŠ ุงู„

128
00:10:08,570 --> 00:10:11,210
primary key ููŠ ุงู„ relation ู‡ุงูŠ ุงู„ู„ูŠ ุฌุฏูŠุฏ ุฏู‡ ุงู„ W

129
00:10:11,210 --> 00:10:16,960
ุตุญุŸุงู„ูˆูŠู†ุฑ ู‡ูˆ ุงู„ primary key ูู‡ุงุฎุฏู‡ ุงูƒุฑุฑู‡ ูˆูŠู† ุงูƒุฑุฑู‡

130
00:10:16,960 --> 00:10:21,860
ู…ุนู‡ุง ุงูŠู‡ ูƒ foreign key ู‡ุงูŠ ุดูƒู„ ุงู„ุฌุฏูˆู„ ุงู„ู„ูŠ ู‡ูŠุตูŠุฑ

131
00:10:21,860 --> 00:10:31,740
ุฏู‡

132
00:10:31,740 --> 00:10:36,820
ุงุชุฎู„ุต ู…ู†ู‡ู… ู‡ุญุท ุงู„ winner ู…ุน ุงู„ day of birth ููŠ

133
00:10:36,820 --> 00:10:40,410
ุฌุฏูˆู„ ู„ุญุงู„ู‡ู… ู‡ุงูŠ ุงู„ุฌุฏูˆู„ ู„ุญุงู„ู‡ู…ู‡ุฃุฎุฏ ุงู„ winner ุงู„

134
00:10:40,410 --> 00:10:46,490
primary ูƒูŠู ู‡ุฐุง ุงู„ุฌุฏูˆู„ ูˆ ุฃุญุทู‡ ููŠ ุงู„ุฌุฏูˆู„ ุงู„ุชุงู†ูŠ ู‡ูŠูƒ

135
00:10:46,490 --> 00:10:51,190
ุงุญู†ุง ุจู†ูƒูˆู† ููŠ ุงู„ third normal form ูู‰ ุฅูŠุด ุตุนุจ ู„ุญุฏ

136
00:10:51,190 --> 00:10:54,890
ุงู„ุขู† ูƒูŠู

137
00:10:54,890 --> 00:10:59,490
ุงู„ุฃุณุฆู„ุฉ ุจุชูŠุฌูŠ ุจุฌูŠุจู„ูƒ ุฃู†ุง ุฌุฏูˆู„ ุจุฌูŠุจู„ูƒ ุฃู†ุง ุฌุฏูˆู„ ุจูƒูˆู†

138
00:10:59,490 --> 00:11:03,550
ู…ุซู„ุง unnormalized ุจุงู„ู…ุฑุฉ ุฃูˆ ู…ุซู„ุง ููŠ ุงู„ first

139
00:11:03,550 --> 00:11:08,550
normal ูˆ ุจุญูƒูŠู„ูƒ ุจุฏูŠ ู‡ุฐุง ุงู„ุฌุฏูˆู„ ูŠูƒูˆู† BCNF ุงูˆ third

140
00:11:08,550 --> 00:11:15,940
normal formุนุดุงู† ุชุญูˆู„ูŠ ุงูˆู„ ุงุดูŠ ุงูŠุด ุจุฏูƒ ุชุฑุณู…ูŠ ุงู„

141
00:11:15,940 --> 00:11:18,720
functional dependences ุงู„ู„ูŠ ุนู†ุฏูƒ ุงู„ functional

142
00:11:18,720 --> 00:11:22,520
dependences ุงู„ู„ูŠ ุนู†ุฏูƒ ุจุฏู†ุง ู†ุทู„ุน ุงูˆู„ ุงุดูŠ ุนุจู„ ุญุชู‰ ู…ุง

143
00:11:22,520 --> 00:11:24,300
ู†ุจุฏุฃ ููŠ ุงู„ functional dependences ุจุฏู†ุง ู†ุทู„ุน ุงูˆู„

144
00:11:24,300 --> 00:11:27,360
ุงุดูŠ ุน ุงู„ multivalue attributes ุงุฐุง ุชุฎู„ุตู†ุง ู…ู†ู‡ู… ู…ูŠู†

145
00:11:27,360 --> 00:11:31,960
ุจู†ูƒูˆู† ููŠ ุงู„ first normal ุฎู„ุตู†ุง ู…ู† ุงู„ first ู†ูŠุฌูŠ ุน

146
00:11:31,960 --> 00:11:35,960
ุงู„ second ุงุฐุง ุชุฎู„ุต ู…ู† ู…ูŠู† ููŠ ุงู„ second ุจุชุทู„ุน ุน ุงู„

147
00:11:35,960 --> 00:11:37,900
partial functional dependences ุงู†ู‡ ูŠูƒูˆู† ุนู†ุฏู‰

148
00:11:37,900 --> 00:11:41,200
column ุจุนุชู…ุฏ ุนู„ู‰ ุฌุฒุกู…ู† ุงู„ candidate key ุงูˆ ุงู„

149
00:11:41,200 --> 00:11:47,000
primary key ุงุชุฎู„ุตุช ู…ู†ู‡ ุจุฑูˆุญ ุนู„ู‰ main ู„transitive

150
00:11:47,000 --> 00:11:53,700
ููŠ ุงู„ third ุจุฏูˆุฑ ูˆูŠู† ููŠ ูƒู„ู… ุจูŠูˆุฏูŠู†ูŠ ุนู„ู‰ ูƒู„ู… ุชุงู†ูŠ ูˆ

151
00:11:53,700 --> 00:12:00,300
ุงู„ุงุชู†ูŠู† ู‡ู… ุงุตู„ุง ู…ุด prime ุชู…ุงู…ุŸ

152
00:12:00,300 --> 00:12:05,020
ูŠูƒูˆู† ููŠ ูˆุณูŠุท ุฒูŠ ุงู„ู„ูŠ ุดูู†ุง ุฒูŠ ู‡ุฐุง ุงู„ู…ุซุงู„ ู…ุฌุฑุฏ ู…ุง

153
00:12:05,020 --> 00:12:09,250
ุงุชุฎู„ุต ู…ู†ู‡ู… ุจุตูŠุฑ ููŠ ุงู„ thirdู…ุด ุฏุงุฆู…ุง ุจู…ุดูŠ ููŠ ูƒู„

154
00:12:09,250 --> 00:12:14,970
ุงู„ุฎุทูˆุงุช ู„ูŠุดุŸ ุงู†ุง ุจุฏุฃ ุงุญูƒูŠู„ูƒู… ู„ูŠุด ู…ู…ูƒู† ุงุญู†ุง ุจุณ

155
00:12:14,970 --> 00:12:17,770
ู†ุชุฎู„ุต ู…ู† ุงู„ multi-value attributes ูŠูƒูˆู† ุงู„ table

156
00:12:17,770 --> 00:12:21,550
ู…ุงููŠุด ููŠู‡ ู„ุง partial ูˆู„ุง transitive ูˆุจุงู„ุชุงู„ูŠ ุจุฏูˆู†

157
00:12:21,550 --> 00:12:26,190
ุงูŠ ุฌู‡ูˆุฏ ู…ู†ู‡ุง ุจูŠุตูŠุฑ ู‡ูˆ ููŠ ุงู„ third normal form ูŠุนู†ูŠ

158
00:12:26,190 --> 00:12:28,910
ุงู„ู…ุซุงู„ ุงู„ู„ูŠ ุงู†ุง ุดุฑุญุชู‡ ุชุจุน ุงู„ second normal form ู…ุด

159
00:12:28,910 --> 00:12:31,190
ุงู†ุง ู‡ุฐุง ุงู„ู…ุซุงู„ ุดุฑุญุชู‡ ูƒ second normal form ู„ุฃู†ู‡ ููŠู‡

160
00:12:31,190 --> 00:12:36,900
partialุฃู†ุง ูุนู„ูŠุงู‹ ุญูˆู„ุชู‡ ู„ second normal form ู„ูƒู†

161
00:12:36,900 --> 00:12:40,600
ู‡ูˆ ุจุฑุถู‡ ููŠ ู†ูุณ ุงู„ู„ุญุธุฉ ุตุงุฑ third ุทู„ุนูˆุง ููŠู‡ ููŠู‡

162
00:12:40,600 --> 00:12:45,620
transitive ุจุฏูˆู† ุฃูŠ ุฌู‡ูˆุฏ ู…ู†ูŠ ู…ุฌุฑุฏ ู…ุง ุญูˆู„ุชู‡ ู„ second

163
00:12:45,620 --> 00:12:53,830
ุตุงุฑ ุงุชู‡ู„ ู„ third ู…ุจุงุดุฑุฉ ู‚ูˆุณุฉ ุงู„ุตูˆุฑุฉุจุชุทู„ุน ุนู„ู‰ ุงู„

164
00:12:53,830 --> 00:12:56,850
multi-value attributes ุจุนุฏู‡ุง ุนู„ู‰ ุงู„ partial ุจุนุฏู‡ุง

165
00:12:56,850 --> 00:13:01,350
ุนู„ู‰ ุงู„ transitive ูˆู…ุด ุฏุงูŠู…ุง ู…ุทู„ูˆุจ ุฃู† ุฃุนู…ู„ ุฅุดูŠ ู…ุด

166
00:13:01,350 --> 00:13:04,850
ุฏุงูŠู…ุง ู…ุทู„ูˆุจ ุฃู† ุฃุนู…ู„ ุฅุดูŠ ุฃุญูŠุงู† ุจูƒูˆู† ู‡ูˆ ุฌุงู‡ุฒ ู‡ูˆ

167
00:13:04,850 --> 00:13:07,990
ู…ุงููŠุด ููŠู‡ partial functional dependency ู„ุงุฒู… ุบุตุจ

168
00:13:07,990 --> 00:13:10,950
ุนู†ู‡ ุฃุทู„ุน ููŠู‡ partial functional dependency ู‡ูˆ

169
00:13:10,950 --> 00:13:13,590
ู…ุงููŠุด ููŠู‡ transitive functional dependency ุฃู†ุง

170
00:13:13,590 --> 00:13:17,290
ุจุฏูˆุฑ ุนู„ูŠู‡ุง ุฅุฐุง ู…ูˆุฌูˆุฏุฉ ุจุชุฎู„ุต ู…ู†ู‡ุง ู…ุด ู…ูˆุฌูˆุฏุฉ ุฎู„ุงุต ู‡ูˆ

171
00:13:17,290 --> 00:13:20,870
ุฌุงู‡ุฒ ุทูŠุจ

172
00:13:25,360 --> 00:13:31,260
ุงู„ููƒุฑุฉ ุจุชู„ุฎุต ุงู„ู…ูˆุถูˆุน ุงู„ู€ 3NF ุงู„ู€ Third Normal Form

173
00:13:32,160 --> 00:13:37,520
ููŠ ู…ู‚ูˆู„ุฉ ุงู„ู„ูŠ ู‡ูŠ ุจูŠุญูƒูˆู‡ุง ููŠ ุงู„ู‚ุณู… ุชุจุน ุงู„ู…ุญูƒู…ุฉ

174
00:13:37,520 --> 00:13:41,820
ุจุงู„ู„ุบุฉ ุงู„ุฅู†ุฌู„ูŠุฒูŠุฉ ุจูŠุญู„ู ููŠ ุงู„ู…ุญูƒู…ุฉ ุงู†ู‡ ุงู†ุง ู‡ุญูƒูŠ

175
00:13:41,820 --> 00:13:46,420
ุงู„ุญู‚ ูˆ ุจุณ ุงู„ุญู‚ ูˆ ู„ุง ุดูŠุก ุบูŠุฑ ุงู„ุญู‚ ุชู…ุงู… ุงู‡ ุจุณ ุจุฏู„

176
00:13:46,420 --> 00:13:50,480
ูƒู„ู…ุฉ ุงู„ุญู‚ ู‡ูŠ ุงู†ู‡ ุจุฏู†ุง ู†ุญูˆู„ู‡ุง ุนู„ู‰ ุงู„ key ูˆ ุนู„ู‰ ุงู„

177
00:13:50,480 --> 00:13:54,260
columns ุงู† ุงู„ columns ู…ุด ู„ุงุฒู… ุชุนุชู…ุฏ ุงู„ุง ุนู„ู‰ ุงู„

178
00:13:54,260 --> 00:13:57,260
candidate key ูˆ ุจุณ ุงู„ candidate key ูˆ ุงู„ candidate

179
00:13:57,260 --> 00:14:01,480
key ูƒุงู…ู„ู‡ุฐุง ุงู„ูƒู„ุงู… ุจูŠู„ุฎุต ู…ูˆุถูˆุน ุงู„ normalization

180
00:14:01,480 --> 00:14:07,120
every non-key attribute ูŠุนู†ูŠ non-prime every non

181
00:14:07,120 --> 00:14:11,680
-key attribute must provide a fact about the key

182
00:14:11,680 --> 00:14:13,740
ุงู„ candidate key ูŠุนู†ูŠ ู„ุงุฒู… ูŠูƒูˆู†ูˆู† ุจูŠุนุชู…ุฏ ุนู„ู‰ ุงู„

183
00:14:13,740 --> 00:14:18,300
candidate key the whole key ูƒู„ู‡ ู…ุงููŠุด partial and

184
00:14:18,300 --> 00:14:23,600
nothing but the key ู‡ุฐู‡ ุจุชุนุทูŠู† ุงู„ third nothing

185
00:14:23,600 --> 00:14:26,840
but the key ูŠุนู†ูŠ ู…ุงููŠุด transitive ุจุชุนุทูŠู† ุงู„ third

186
00:14:26,840 --> 00:14:31,840
normal formูˆ ุงู„ whole key ุจุชุนุทูŠู†ูŠ ู…ูŠู† ุงู„ second

187
00:14:31,840 --> 00:14:36,120
normal form ู„ุฃู† ู…ุงููŠุด partial ูˆ fact about the key

188
00:14:36,120 --> 00:14:42,320
ุจุชุนุทูŠู†ูŠ ุงู„ first normal form ุชู…ุงู…

189
00:14:42,320 --> 00:14:47,000
ู‡ุฐู‡ ุงู„ู…ู‚ูˆู„ุฉ ุฅุฐุง ู…ู…ูƒู† ูˆุงุญุฏ ูŠุญูุธู‡ุง ุจุชู„ุฎุต ุงู„ููƒุฑุฉ

190
00:14:47,000 --> 00:14:52,260
ุจุชุงุนุชู†ุง ู‡ุงูŠ ูƒู„ ููƒุฑุฉ ุงู„ normalization ุทูŠุจ ุงู„ุฅุด ุงู„ู„ูŠ

191
00:14:52,260 --> 00:14:57,550
ุจุนุฏูŠู† ุจุฏูŠ ุฃุญูƒูŠู‡ุงู„ู€ Third Normal Form ููŠ ูƒุชูŠุฑ ู…ู†

192
00:14:57,550 --> 00:15:01,790
ุงู„ุญุงู„ุงุช ุจู†ูƒุชููŠ ููŠู‡ุง ููŠ ูƒุชูŠุฑ ู…ู† ุงู„ุญุงู„ุงุช ุงู„ู€ Third

193
00:15:01,790 --> 00:15:05,530
Normal Form ู†ุนุทูŠู‡ุง Enough ุฃูˆ Decent Normalization

194
00:15:05,530 --> 00:15:10,690
ูˆุจูƒููŠ ุฅุฐุง ููŠ ู…ุฌุงู„ ู†ูˆุตู„ ู„ู„ุฏุฑุฌุฉ ุฃุนู„ู‰ ุงู„ู„ูŠ ู‡ูŠ ุงู„ู€

195
00:15:10,690 --> 00:15:15,990
BCNF ูู„ูŠูƒู† ู…ุงุฏุฑู†ุงุด ุงู„ู€ 3NF ุจุงู„ู†ุณุจุฉ ุฅู„ูŠู†ุง ุชุนุชุจุฑ

196
00:15:15,990 --> 00:15:18,850
ูƒูุงูŠุฉ ููŠ ุงู„ design ูˆ ููŠ ุจุฑู…ุฌุฉ ุงู„ database

197
00:15:25,440 --> 00:15:32,840
ุงู„ ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ

198
00:15:32,840 --> 00:15:37,720
ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู†

199
00:15:37,720 --> 00:15:38,780
ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ

200
00:15:38,780 --> 00:15:38,780
ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู†

201
00:15:38,780 --> 00:15:38,780
ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ

202
00:15:38,780 --> 00:15:38,800
ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู†

203
00:15:38,800 --> 00:15:39,780
ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ ุณูŠ ู† ุงู ุจูŠ

204
00:15:39,780 --> 00:15:40,320
ุณูŠ ู† ุง

205
00:15:44,440 --> 00:15:47,920
ููƒุฑุชู‡ุง ุฃู†ู‡ ุฅุฐุง ุฃู†ุง ููŠ ุนู†ุฏู‰ dependencies ููŠ ุงู„

206
00:15:47,920 --> 00:15:51,800
relation X ุจุชุนุทูŠู†ูŠ Y ู„ุงุฒู… ุงู„ dependency ู‡ุฐู‡ ุชูƒูˆู†

207
00:15:51,800 --> 00:15:55,020
ูˆุงุญุฏุฉ ู…ู† ุชู†ุชูŠู† ุฅู…ุง ุฃู†ู‡ุง trivial functional

208
00:15:55,020 --> 00:15:58,420
dependency ุฅูŠุด ูŠุนู†ูŠ trivial functional dependency

209
00:15:58,420 --> 00:16:07,320
ูŠุนู†ูŠ ู‚ุงุนุฏ ุฃุญูƒูŠ A ูˆB ูˆC ุจูŠุนุทูˆู†ูŠ Aู‡ุฐู‡ ุงุญู†ุง ู…ุงูƒู†ู†ุง

210
00:16:07,320 --> 00:16:09,860
ู†ุญูƒูŠ ุนู†ู‡ุง ุงุตู„ุง ููŠ ุงู„dependences ู‡ุฐู‡ ุจู†ุนุชุจุฑู‡ุง

211
00:16:09,860 --> 00:16:13,120
trivialุŒ trivial ูŠุนู†ูŠ ุจุณูŠุทุŒ ุจุฏูŠู‡ูŠ ูŠุนู†ูŠ ุงู†ุง ุจุญูƒูŠู„ูƒ

212
00:16:13,120 --> 00:16:15,840
ุงู† ู„ู…ุง ุจุนุฑู ุงู„ A ูˆ ุงู„ B ูˆ ุงู„ C ุจุนุฑู ุงู„ A ุทุจ ู…ุง

213
00:16:15,840 --> 00:16:20,740
ุทุจูŠุนูŠ ุงุญู†ุง ุนุงุฑู ุงู„ A ู„ู…ุง ุงู†ุง ุจุนุฑู ุงู„ A ู…ู† ุงูˆู„ ู„ู…ุง

214
00:16:20,740 --> 00:16:24,480
ุงู†ุง ุงุฌูŠ ุงุญูƒูŠ ุงู† ุงุญู†ุง ุงุฐุง ุนุฑูู†ุง ุงู„ N ูˆ ุงู„ F ุจุนุฑู ุงู„

215
00:16:24,480 --> 00:16:30,080
F ุทุจ ู…ุง ุงุญู†ุง ุญุงูƒูŠู†ุงู‡ ููŠ ุงู„ุฃูˆู„ ุงุตู„ุงูู‡ุฐู‡ trivial

216
00:16:30,080 --> 00:16:33,800
ูุนู†ุฏู…ุง ุจุญูƒูŠ ุฃู† X ููŠ ุนู†ุฏูŠ function dependency X

217
00:16:33,800 --> 00:16:39,240
ุจุชุนุทูŠู†ูŠ Y ุฃู†ู‡ุง ุชูƒูˆู† trivial ูŠุนู†ูŠ ุงู„ Y ุฌุฒุก ู…ู† ุฌุฒุก

218
00:16:39,240 --> 00:16:42,400
ู…ู† X ุฃูˆ ุจุชุณูˆูŠู‡ุง ุฃู†ูƒ ุชูŠุฌูŠ ุชุญูƒูŠู„ูŠ ุฅูŠุด ุฃู†ุง ุจุชุณูˆูŠู‡ุง

219
00:16:42,400 --> 00:16:45,900
ูŠุนู†ูŠ ุชุญูƒูŠู„ูŠ ุจูŠู‡ ุฅุฐุง ุนุฑูุช ุงู„ ุจูŠู‡ ุจุนุฑู ุงู„ ุจูŠู‡

220
00:16:45,900 --> 00:16:53,020
trivial ุจุณูŠุท ุจุฏูŠู‡ูŠ ูุฃูŠ dependency ููŠ ุงู„ relation X

221
00:16:53,020 --> 00:16:59,590
ุจุชุนุทูŠู†ูŠ Y ูŠุง ุฅู…ุง ุจุชูƒูˆู† trivial ูŠุง ุฅู…ุง ู…ุงู„ู‡ุงุงู„ู€ X

222
00:16:59,590 --> 00:17:04,650
ู‡ุง ุฏูŠ ุจุฏุง ุชูƒูˆู† super key ู„ู„schema ูŠุนู†ูŠ candidate

223
00:17:04,650 --> 00:17:09,070
key ุฃูˆ primary key ุฃูˆ super key ู„ุฃู† ุงู„ super key

224
00:17:09,070 --> 00:17:15,070
ุฅูŠุด ู‡ูˆุŸ ู‡ูˆ candidate key ู…ุน columns ุฅุถุงููŠุฉ ู…ุน

225
00:17:15,070 --> 00:17:18,910
columns ุฅุถุงููŠุฉ ููŠุนู†ูŠ ุงู„ X ู‡ูŠ ุงู„ู„ูŠ ุนู„ูŠู‡ุง ุงู„

226
00:17:18,910 --> 00:17:22,930
dependency ุจุฏุง ุชูƒูˆู† primary ุฃูˆ candidate ุฃูˆ super

227
00:17:22,930 --> 00:17:27,510
ุฅูŠุด ุชุฎู„ู ุนู† ุงู„ third normal formุŸ

228
00:17:32,310 --> 00:17:35,890
ุงู„ู€ Third Normal Form ุฅุฐุง ุฃู†ุง ู…ุงุจุฏูŠ ุฃุฌูŠู‡ุง ู…ู† ู…ู†ุทู‚

229
00:17:35,890 --> 00:17:39,570
ุงู„ Transitive ู„ูˆ ุจุฏูŠ ุฃุดูˆู ุชุนุฑูŠูุฉ ู‡ูŠ ู„ู‡ุง ุชุนุฑูŠู ุชุงู†ูŠ

230
00:17:39,570 --> 00:17:44,030
ุดุจูŠู‡ ุจุงู„ BCNF ุนุดุงู† ุฃุดูˆู ุงู„ุงุฎุชู„ุงู ุจูŠู†ู‡ู… ู‡ูŠ ุนุจุงุฑุฉ ุนู†

231
00:17:44,030 --> 00:17:49,030
Second Normal Form ููŠู‡ุง Dependences X ุจุชุนุทูŠู†ูŠ A

232
00:17:49,030 --> 00:17:55,790
ุจุดุฑุท ุฅู† X ุจุชุนุทูŠู†ูŠ A ุชูƒูˆู† Trivial ุฃูˆ X ู‡ูŠ Super Key

233
00:17:55,790 --> 00:18:01,300
ู„ุงุญุธูŠู† ู‡ุฏูˆู„ ุงู„ุจู†ุฏูŠู† ุฒูŠ ู…ูŠู† ุฒูŠ ุงู„ BCNFุฃูˆ ุงู„ู†ู‚ุทุฉ

234
00:18:01,300 --> 00:18:04,160
ุงู„ุชุงู„ุชุฉ ู‡ุฐู‡ ุงู„ู„ูŠ ุงุญู†ุง ุจุฏู†ุง ู†ุชุฎู„ุต ู…ู†ู‡ุง ุนุดุงู† ู†ุณูŠุฑ ููŠ

235
00:18:04,160 --> 00:18:11,600
ุงู„ BCNF ุฃูˆ ุงู† ุงู„ columns A ู†ุงู‚ุต X A ู†ุงู‚ุต X ู…ุง ู„ู‡ู…

236
00:18:11,600 --> 00:18:16,200
the set difference between X prime attributes

237
00:18:16,200 --> 00:18:22,640
contained in some candidate key ู‡ุฐู‡ ุงู„ูุฑู‚ ุงู„ูˆุญูŠุฏ

238
00:18:22,640 --> 00:18:28,830
ุจูŠู† ุงู„ BCNF ูˆ ุงู„ 3NF ุงู„ู†ู‚ุทุฉ ู‡ุฐู‡ุฅู† ุฅุฐุง ููŠ ุนู†ุฏู‰

239
00:18:28,830 --> 00:18:34,070
dependency X ุจุชุนุทูŠู†ูŠ A ุงู„ columns ููŠ A ู…ุด ู…ูˆุฌูˆุฏูŠู†

240
00:18:34,070 --> 00:18:41,790
ููŠ X ูŠุนู†ูŠ A ู†ุงู‚ุต X ูŠูƒูˆู†ูˆุง ู…ุงู„ู‡ู… contained in some

241
00:18:41,790 --> 00:18:46,110
candidate key ููŠ ุฃุบู„ุจ ุงู„ุญุงู„ุงุช ู…ุฌุฑุฏ ู…ุง ุฃู†ุง ุจูˆุตู„ ู„ 3

242
00:18:46,110 --> 00:18:49,570
NF ููŠ ุฃุบู„ุจ ุงู„ุญุงู„ุงุช automatic ุจุงู„ู„ู‡ ุญุงู„ู†ุง ููŠ ุงู„

243
00:18:49,570 --> 00:18:55,420
BCNF ุนุงุฏุฉ ุจุฏูˆู† ุฌู‡ูˆุฏุบุงู„ุจุง ุจุฏูˆู† .. ู…ุงู†ุดุชุบู„ ุฅุดูŠ ู„ู…ุง

244
00:18:55,420 --> 00:18:59,020
ู†ุนู…ู„ ุงู„ 3NF ุจู†ูƒูˆู† ููŠ ุงู„ BCNF ููŠ ุญุงู„ุงุช ุฎุงุตุฉ ุจุณ

245
00:18:59,020 --> 00:19:04,000
ุจุชุญู‚ู‚ุด ุนู†ุฏูŠ ุงู„ุดุฑุท ู‡ุฐุง ุจูƒูˆู† ู‡ุฐุง ุงู„ุดุฑุท ู…ูˆุฌูˆุฏ ูู„ุงุฒู…

246
00:19:04,000 --> 00:19:07,880
ุฃุชุฎู„ุต ู…ู†ู‡ ูƒูŠู ุฃุชุฎู„ุต ู…ู†ู‡ ุจุฌุนู„ ุงู„ columns ุงู„ู„ูŠ

247
00:19:07,880 --> 00:19:11,100
ู…ูˆุฌูˆุฏูŠู† ููŠ A ู…ุด ููŠ X ูˆ ุงู„ู„ูŠ ู‡ู… ุฌุฒุก ู…ู† candidate

248
00:19:11,100 --> 00:19:17,760
key ูˆ ุจุงุฎุฏู‡ู… ุนู„ู‰ relation ู„ุญุงู„ู‡ู… ูˆ ุจุงุฎุฏู‡ู… ุนู„ู‰

249
00:19:17,760 --> 00:19:18,880
relation ู„ูˆุญุฏู‡ู…

250
00:19:21,620 --> 00:19:26,000
ู‡ุจุฏุฃ ุฃุฎุฏ ู…ุซุงู„ ููŠ

251
00:19:26,000 --> 00:19:32,160
ุนู†ุฏูŠ ุฌุฏูˆู„ ุงู„ุฌุฏูˆู„

252
00:19:32,160 --> 00:19:37,480
ู‡ุฐุง ู„ุญุฌูˆุฒุงุช ู„ู‚ุงุนุฉ ุฑูŠุงุถูŠุฉ court ููŠ ุนู†ุฏูŠ ู†ุงุฏุฑ ุฑูŠุงุถูŠ

253
00:19:37,480 --> 00:19:44,020
ููŠ ู‚ุงุนุชูŠู† ุจุณ ู‚ุงุนุชูŠู† ูˆุงุญุฏ ูˆุงุชู†ูŠู† ู‡ุฐู‡ ุฑู‚ู… ุงู„ู‚ุงุนุฉ ู‡ุฐู‡

254
00:19:44,020 --> 00:19:48,840
ู…ูˆุนุฏ ุงู„ุญุฌุฒ ูˆู†ู‡ุงูŠุฉ ู…ูˆุนุฏ ุงู„ุญุฌุฒูˆ ุงู„ุญุฌุฒุงุช ุงู„ู„ู‰ ุนู†ุฏู‰ ุฒู‰

255
00:19:48,840 --> 00:19:52,760
ู…ุง ุงู†ุชูˆุง ุดุงูŠููŠู† ูู‰ ุฃุฑุจุน ุฃู†ูˆุงุน ูู‰ standard ูู‰ saver

256
00:19:52,760 --> 00:19:59,160
ูู‰ premium a ูˆ premium b ุงูŠุด ุงู„ุญุฌุฒุงุช ู‡ุฏูˆู„ ุงู„ุญุฌุฒุงุช

257
00:19:59,160 --> 00:20:05,480
ู‡ุฏูˆู„ ุงู„ุฃู†ูˆุงุน ุงู„ standard ู‡ูˆ ู„ุดุฎุต ู…ุด ู…ู†ุจุฑ ุนู†ุฏู†ุง ูู‰

258
00:20:05,480 --> 00:20:09,220
ุงู„ู†ุงุฏูŠ ู…ุด ุนูˆุถู‡ ูู‰ ุงู„ู†ุงุฏูŠ ูˆ ุจูŠุญุฌุฒ ุงู„ู‚ุงุน ูˆุงุญุฏ ุงู„

259
00:20:09,220 --> 00:20:15,020
saver ู„ูˆุงุญุฏ ุนูˆุถู‡ ู…ู†ุจุฑ ูˆ ุจูŠุญุฌุฒ ุงู„ู‚ุงุน ูˆุงุญุฏ ุงู„

260
00:20:15,020 --> 00:20:19,620
premium aู„ุนุถูˆ ุนู†ุฏู‰ member ูˆ ุจูŠุญุฌุฒ ุงู„ู‚ุงุนุฉ ุงุชู†ูŠู†

261
00:20:19,620 --> 00:20:25,340
premium B ู„ูˆุงุญุฏ ุจูŠุญุฌุฒ ุงู„ู‚ุงุนุฉ ุงุชู†ูŠู† ูˆ non member ู…ุด

262
00:20:25,340 --> 00:20:32,980
ุนุถูˆ ุนู†ุฏู‰ ูู‰ ุงู„ู†ุงุฏูŠ ู…ู† ุงู„ูƒู„ุงู… ู‡ุฐุง ุงู†ุง ุจุณุชู†ุชุฌ ุงู†ู‡

263
00:20:32,980 --> 00:20:37,740
ุงุฒุง ุงู†ุง ุนุฑูุช ู†ูˆุน ุงู„ุญุฌุฒ ุจุนุฑู ุงู„ู‚ุงุนุฉ ูˆู„ุง ู„ุฃ ู„ูˆ

264
00:20:37,740 --> 00:20:42,360
ุญูƒูŠุชู„ูƒู… ุงู„ุญุฌุฒ ุชุจุน ุงู„ู„ุญุธุฉ ู‡ุฐู‡ premium B ู…ุนู†ุงุชู‡ ูู‰

265
00:20:42,360 --> 00:20:48,070
ุงู‰ ู‚ุงุนุฉ ู‡ูˆ ูู‰ ุงู‰ ู…ู„ุนุจ ูู‰ ุงุชู†ูŠู† premium AุณูŠูุฑ ุงูˆ

266
00:20:48,070 --> 00:20:52,470
standard ุงุฐุง ูู‰ ุนู†ุฏูŠ functional dependency ุจูŠู† ุงู„

267
00:20:52,470 --> 00:21:00,090
rate type ูˆุงู„ court ุตุญ ุจุนุฑู ุงู„ court ู…ู† ุงู„ rate

268
00:21:00,090 --> 00:21:03,990
type ู†ุฌู‰

269
00:21:03,990 --> 00:21:06,290
ู†ุทู„ุน ุนู„ู‰ ุงู„ keys ุงู„ู„ู‰ ู…ูˆุฌูˆุฏุฉ ุงู„ candidate keys

270
00:21:06,290 --> 00:21:10,150
ุงู„ู„ู‰ ูู‰ ุงู„ุฌุฏูˆู„ ูู‰ ุนู†ุฏูŠ ุงูˆู„ candidate key ู…ุฑุดุญ ุงู†

271
00:21:10,150 --> 00:21:13,450
ูŠูƒูˆู† candidate key ูŠูƒูˆู† ุงู„ primary key ุงู„ court ู…ุน

272
00:21:13,450 --> 00:21:21,440
ุงู„ start timeุงู„ู‚ุงุนุฉ ุงู„ู„ูŠ ู„ุญุฌุฒู‡ุง ูˆู…ูˆุนุฏ ุญุฌุฒู‡ุง ุฅุฐุง

273
00:21:21,440 --> 00:21:25,720
ุนุฑูุชู‡ู… ุจุนุฑู ุจุงู‚ูŠ ุงู„ุฌุฏูˆู„ ููŠ ุนู†ุฏูŠ ูƒู…ุงู† candidate key

274
00:21:25,720 --> 00:21:31,420
ุงู„ court ู…ุน ุงู„ end time ุงู„ู‚ุงุนุฉ ูˆู…ูˆุนุฏ ู†ู‡ุงูŠุฉ ุงู„ุญุฌุฒ

275
00:21:31,420 --> 00:21:40,340
ููŠ ุนู†ุฏูŠ ูƒู…ุงู† candidate key ุฃู†ูŠ ุฃุฎุฏ ุงู„ rate ู…ุน ุงู„

276
00:21:40,340 --> 00:21:45,300
end ุฃูˆ ุงู„ rate ู…ุน ุงู„ startู…ู„ุงุญุธูŠู† ููŠ ุนู†ุฏู‰ column

277
00:21:45,300 --> 00:21:50,160
none prime ูƒู„

278
00:21:50,160 --> 00:21:54,940
ุงู„ columns prime ูƒู„ู‡ู… ุฌุฒุก ู…ู† candidate key ูƒู„ู‡ู…

279
00:21:54,940 --> 00:22:03,760
ุฌุฒุก ู…ู† candidate key ู‡ุฐุง ุจูŠู‚ุฏุฑ ุงู†ู‡ ุงูŠุด ุงู†ู‡

280
00:22:03,760 --> 00:22:10,790
ูŠุตูŠุฑ ุนู†ุฏู‰ ุงู„ูƒู„ุงู… ู‡ุฐุง ุงู† a ู†ุงู‚ุต xู‡ู„ุงู‚ูŠู‡ุง ููŠ ูƒู„

281
00:22:10,790 --> 00:22:13,850
ุงู„ุญุงู„ุงุช ููŠ ูƒู„ ุงู„ functional dependencies ุงู„ู„ูŠ ุนู†ุฏู‰

282
00:22:13,850 --> 00:22:19,610
ุงู† ูˆ ุง ู†ุงู‚ุต x ู‡ูŠุตู ุนู†ุฏู‰ prime columns ูู‡ู… ุฌุฒุก ู…ู†

283
00:22:19,610 --> 00:22:24,590
candidate key is a prime ูุงู†ุง ูˆุงุตู„ ู„ู„ third normal

284
00:22:24,590 --> 00:22:26,810
form ููŠ ู‡ุฐุง ุงู„ table ูˆุงุตู„ ู„ู„ third normal form ุจุณ

285
00:22:26,810 --> 00:22:30,450
ุจู†ุงุก ุนู„ู‰ ุฃูŠุด ุนู„ู‰ ุงู„ู‚ุงุนุฏุฉ ุฑู‚ู… ุชู„ุงุชุฉ ุงู„ู„ูŠ ู‡ูŠ ู…ู…ู†ูˆุนุฉ

286
00:22:30,450 --> 00:22:35,510
ู…ู…ู†ูˆุนุฉ ููŠ ุงู„ BCNF ููŠ ุงู„ BCNF ุญูƒูŠ ุงู†ุง ู„ุงุฒู… ุงู„

287
00:22:35,510 --> 00:22:39,090
dependency ุชูƒูˆู† ุงู…ุง trivial ุงูˆ super key

288
00:22:42,640 --> 00:22:48,340
ุฅูŠุด ุงู„ุญู„ุŸ ุฅูŠุด ุจุฏู†ุง ู†ุนู…ู„ุŸ ุทุจุนุง ุฃู†ุง ู…ุณุชุนุฑุถ ู‡ุฐู‡ ุนุดุงู†

289
00:22:48,340 --> 00:22:50,720
ุงู„ู„ูŠ ุจุฏู‡ ูŠุฏุฑุณ ู„ุญุงู„ู‡ ููŠ ุงู„ุจูŠุช ู…ุณุชุนุฑุถ ูƒู„ ุงู„ keys

290
00:22:50,720 --> 00:22:54,180
ุงู„ู„ูŠ ู…ูˆุฌูˆุฏุฉ ูˆ ุจุนุฏูŠู† ุฃุญูƒูŠ ุฅู†ู‡ ููŠ redundancies ููŠ ุงู„

291
00:22:54,180 --> 00:22:58,540
keys ูˆ ู…ุตููŠู‡ู… ููŠ ุงู„ุขุฎุฑ ุนู„ู‰ ุฃุฑุจุนุฉ keys ุจุณ S1 ูˆ S2 ูˆ

292
00:22:58,540 --> 00:23:03,200
S3 ูˆ S4 ุทุจุนุง ู„ูŠุด redundancy ู„ุฅู†ู‡ ููŠ super keys ู„ู…ุง

293
00:23:03,200 --> 00:23:05,860
ุฃู†ุง ุจุนุฏูŠู† ุจุญูƒูŠ ุงู„ key ุงู„ court ูˆ ุงู„ start time ูˆ

294
00:23:05,860 --> 00:23:08,020
ุจุนุฏูŠู† ุจุนุฏูŠู† ุจุญูƒูŠ ุฅู†ู‡ ุงู„ court ูˆ ุงู„ start time ูˆ ุงู„

295
00:23:08,020 --> 00:23:12,910
end time ุตุงุฑ ู‡ุฐุง super key ู„ู…ูŠู†ุŸู„ู‡ุง ุฏู‡ ุตุญ ูุงู†ุง

296
00:23:12,910 --> 00:23:15,590
ู…ุณุชุนุฑุถ ูƒู„ ุงู„ keys ูˆ ุฅุณุชุซู†ุงุก ุงู„ super ูˆ ุงู„ู„ูŠ ููŠู‡ู…

297
00:23:15,590 --> 00:23:18,110
redundancies ู‡ูŠุตููˆุง ุนู†ุฏูŠ ุงู„ุฃุฑุจุน keys ุงู„ู„ูŠ ุฃู†ุง

298
00:23:18,110 --> 00:23:21,370
ุดุฑุญุชู‡ู… head ู…ุน head ูˆ head ู…ุน head ุงู„ rate ู…ุน ุงู„

299
00:23:21,370 --> 00:23:25,170
end ูˆ ุงู„ rate ู…ุน ุงู„ start ุชู…ุงู… ู‡ุฐุง ู…ู„ุฎุต ุงู„ูƒู„ุงู… ุชุจุน

300
00:23:25,170 --> 00:23:29,170
ุงู„ slide ุญูƒูŠู†ุง

301
00:23:29,170 --> 00:23:31,630
ููŠ ุงู„ second ู†ุชุฎู„ุต ู…ู† ุงู„ partial ููŠ ุงู„ third ู†ุชุฎู„ุต

302
00:23:31,630 --> 00:23:38,460
ู…ู† ุงู„ trivial ุงู„ุขู† ุนุดุงู† ุฃุณูŠุฑ ููŠ ุงู„ bcfุจุฏูŠ ุงุชุฎู„ุต ู…ู†

303
00:23:38,460 --> 00:23:43,540
ู…ูˆุถูˆุน ุงู† ุงู„ rate type ุจูŠุนุทูŠู†ูŠ ุงู„ court rate type

304
00:23:43,540 --> 00:23:49,940
ุจุชุนุทูŠู†ูŠ ุงู„ court ูˆู‡ุฐู‡ ู…ุดูƒู„ุฉ ูˆ ุงู„ุงุชู†ูŠู† ุงู„ุงุชู†ูŠู†

305
00:23:49,940 --> 00:23:55,100
prime ู…ุงููŠุด ููŠู‡ู… ูˆุงุญุฏ non prime ูˆ

306
00:23:55,100 --> 00:23:59,880
ุงู„ court ู…ุด ุฌุฒุก ู…ู† ุงู„ rate ู…ุด ุฌุฒูŠุงุช ู…ู† ุจุนุถ ุนุดุงู†

307
00:23:59,880 --> 00:24:04,290
ุงุญู‚ู‚ ุงู†ุง ุงู„ู„ูŠ ู‡ูŠ ู…ูˆุถูˆุน ุงู„ trivialุฃู†ุง ู„ู…ุง X ุจุชุนุทูŠู†ูŠ

308
00:24:04,290 --> 00:24:09,210
Y ู„ุงุฒู… ุชูƒูˆู† trivial ุฅู†ู‡ ุฌุฒุฆูŠุฉ ู…ู†ู‡ุง ุฃูˆ ุจุชุณูˆูŠู‡ุง ู‡ู„

309
00:24:09,210 --> 00:24:13,350
ุงู„ rate ุจุชุณุงูˆูŠ ุงู„ courtุŸ ู…ุงุจูŠุณุงูˆูˆุด ุจุนุถ ูˆู„ุง ุฌุฒุก ู…ู†

310
00:24:13,350 --> 00:24:17,130
ุจุนุถ ูˆู„ุง ู„ู‡ู… ุนู„ุงู‚ุฉ ููŠ ุจุนุถ ุทุจ ู‡ู„ ุงู„ X ู‡ูŠ super keyุŸ

311
00:24:17,130 --> 00:24:22,470
ุงู„ court ู„ุญุงู„ู‡ุง ุงู„ court .. ุงู„ .. ุขุณู ุงู„ rate ู‡ู„

312
00:24:22,470 --> 00:24:26,550
ู‡ูŠ super keyุŸ ุงู„ rate ู„ุญุงู„ู‡ุง super keyุŸ ู…ุด

313
00:24:26,550 --> 00:24:29,730
candidate key ูˆู„ุง primary key ูˆู„ุง super key ูˆู„ุง

314
00:24:29,730 --> 00:24:33,460
ู‡ุฐู‡ ุฌุฒุก ู…ู† ู‡ุฐู‡ ุฅุฐุง ู…ุดูƒู„ุชูŠ ุฃู†ุง ู…ุน ู‡ุฐู‡ุฅู† ุงู„ court

315
00:24:33,460 --> 00:24:36,100
ุจุชุนุทูŠู†ุง ุงู„ rate ุทูŠุจ ูุจุฏูŠ ุฃุฎุฏู‡ู… ู‡ุฏูˆู„ ูˆ ุฅูŠุด ุฃุนู…ู„

316
00:24:36,100 --> 00:24:43,160
ููŠู‡ู…ุŸ ููŠ ุฅูŠุด ุตุนุจ ุจุงุฎุฏ ุงู„ dependency ุงู„ู„ูŠ ุจุชุนุฌุจู†ูŠุด

317
00:24:43,160 --> 00:24:45,780
ููŠ ูƒู„ ููƒุฑุฉ ุงู„ normalization ุงู„ dependency ุงู„ู„ูŠ

318
00:24:45,780 --> 00:24:51,000
ุจุชุนุฌุจู†ูŠุด ุจุฑู…ูŠู‡ุง ููŠ ุงู„ relation ู„ุญุงู„ู‡ุง ู‡ุงุฎุฏ ู‡ุฏูˆู„

319
00:24:51,000 --> 00:24:54,060
ุงู„ุฃุซู†ูŠู† ูˆ ุฃุญุทู‡ู… ููŠ ุงู„ relation ูˆ ุฃุฎุชุงุฑ ู…ู†ู‡ู…

320
00:24:54,060 --> 00:24:57,660
primary key ูˆ ุงู„ primary key ุงู„ู„ูŠ ู…ู†ู‡ู… ุฃุฎุฏู‡ ููŠ

321
00:24:57,660 --> 00:25:01,440
ุงู„ุฃุตู„ูŠุฉ ูˆ ุจุดุทุจ ุงู„ columns ู…ู†ู‡ู…

322
00:25:05,700 --> 00:25:11,060
ุชุนู…ู„ูŠู‡ุง ููŠ ุงู„ secondุŸ ู‡ุฏูˆู„ ุงุชู†ูŠู† ุจุชุนุชู…ุฏูˆุง ุนู„ู‰ ุจุนุถุŸ

323
00:25:11,060 --> 00:25:13,920
ู‡ุฏ ุจุชุนุชู…ุฏ ุนู„ู‰ ู‡ูŠ ุตุญูŠุญ ุงูŠุด ุฏุฎู„ุช ุงู„ second ููŠ

324
00:25:13,920 --> 00:25:18,600
ุงู„ู…ูˆุถูˆุนุŸ ุทูŠุจ ู‡ูŠ ุชุนุงู„ู‰ ุนู„ู‰ ุงู„ table ูˆูŠู† ุงู„ partial

325
00:25:18,600 --> 00:25:24,520
ููŠ ุงู„ู…ูˆุถูˆุนุŸ ู‡ูŠ ุงู„ red ุทูŠุจ ุจุชุนุชู…ุฏ ุนู„ู‰ ู…ูŠู†ุŸ ุนู„ู‰ ุงู„

326
00:25:24,520 --> 00:25:26,340
court ุงู„ court ูŠุฒูˆ ู…ู† ุงู„ primary key

327
00:25:29,580 --> 00:25:33,560
ุงู„ rate ุจุชุนุชู…ุฏ ุนู„ู‰ ุงู„ court ูƒู„ุงู…ูƒ ุตุญ ูˆ ุงู„ court

328
00:25:33,560 --> 00:25:38,520
ุฌุฒุก ู…ู† ุงู„ primary key ู„ูƒู† ุงู†ุช ู†ุณูŠุชูŠ ุงู† ุงู„ rate ู…ุด

329
00:25:38,520 --> 00:25:43,020
non-prime ุงุญู†ุง ุญูƒูŠู†ุง ุงู„ partial ูˆ ุงู„ trivial ุงู„

330
00:25:43,020 --> 00:25:46,680
non-prime ุจูŠุนุชู…ุฏ ุนู„ู‰ ุฌุฒุก ู…ู† ุงู„ primary key ุจุณ ู‡ุฐู‡

331
00:25:46,680 --> 00:25:50,120
ู…ุด non-prime ู‡ุฐู‡ ุงู„ rate ู…ุน ุงู„ end ุงูˆ ุงู„ start

332
00:25:50,120 --> 00:25:55,180
primary key ุงูˆ candidate key ูู‡ูŠ ุจุชุญู‚ู‚ ุงู„ second ูˆ

333
00:25:55,180 --> 00:26:00,520
ุจุชุญู‚ู‚ ุงู„ third ุจุณ ู…ุชุญู‚ู‚ุด ุงู„ BCNFู†ุฑุฌุน ูƒู…ุงู† ู…ุฑุฉ

334
00:26:00,520 --> 00:26:03,980
ู…ุดูƒู„ุชูŠ ุงู† ุงู„ rate type ุจุชุนุทูŠู†ูŠ ุงู„ court ูˆ ู‡ุงุฏูŠ ู…ุด

335
00:26:03,980 --> 00:26:09,960
ุฌุฒุก ู…ู† ู‡ุงูŠ ูˆู„ุง ุจุชุณูˆูŠู‡ุง ุนุดุงู† ุชูƒูˆู† trivial ูˆู„ุง ..

336
00:26:09,960 --> 00:26:14,500
ูˆู„ุง ู‡ุงุฏูŠ ู…ุน ู‡ุงุฏูŠ .. ู‡ุงุฏูŠ ู„ุญุงู„ู‡ุง ู…ุด super key ุงูˆ

337
00:26:14,500 --> 00:26:18,680
candidate key ู„ูˆุญุฏู‡ุง ู‡ุงุฎุฏู‡ู… ูˆ ุฃุญุทู‡ู… ููŠ relation

338
00:26:18,680 --> 00:26:22,800
ู„ุญุงู„ูŠ ู‡ุงุฏูŠ ุฃุนู…ู„ relation ุฌุฏูŠุฏุฉ ุฃุณู…ูŠู‡ุง ุงู„ rate type

339
00:26:22,800 --> 00:26:28,320
ู…ุซู„ุงู‡ูŠ ุงู„ relation ุฌุฏูŠุฏุฉ ุญุทูŠุช ููŠู‡ุง ุงู„ rate ูˆ ุจูŠุงุฎุฏ

340
00:26:28,320 --> 00:26:32,280
ุฃูŠ ู‚ุงุนุฉ ุงู„ saver ุจูŠุงุฎุฏ ุงู„ุฃูˆู„ู‰ ู„ู„ standard ุจูŠุงุฎุฏ

341
00:26:32,280 --> 00:26:34,800
ุงู„ุฃูˆู„ู‰ ู„ู„ premium ุจูŠุงุฎุฏ ุงู„ุชุงู†ูŠุฉ ู„ู„ premium ุจูŠุงุฎุฏ

342
00:26:34,800 --> 00:26:38,000
ุงู„ุชุงู†ูŠุฉ ุทุจุนุง ู‡ุฐุง ุงู„ member flag ุงู†ุง ุถูุชู‡ ู…ู† ุนู†ุฏูŠ

343
00:26:38,000 --> 00:26:42,380
ู„ู…ุง ุชุชุฐูƒุฑูˆุง ูƒู†ุช ุงุญูƒูŠ ุงู†ู‡ ู„ู…ุง ุนู…ู„ู†ุง saver ุจู†ู‚ู„ ุนู„ู‰

344
00:26:42,380 --> 00:26:47,380
ุงู„ member ship saver ูˆู„ุง standard ุญุณุจ ุงู†ู‡ member

345
00:26:47,380 --> 00:26:50,300
ูˆู„ุง ู…ุด member ูู‡ุฐุง ุงู†ุง ุถูุชู‡ ู„ูˆ ู…ุงุถูุชู‡ูˆุด ู…ุงู„ูˆุด ุฏุฎู„

346
00:26:50,300 --> 00:26:54,470
ูŠุนู†ูŠ ู…ุงู„ูˆุด ุฏุฎู„ ููŠ ุงู„ุณุคุงู„ ุงุญู†ุง ุดุบู„ู†ุง ู…ุนุงู‡ุง ุฏูˆู„ูู‡ูŠ

347
00:26:54,470 --> 00:26:57,650
ุงู„ู€ saver ุจูŠุนุทูŠู†ูŠ ุงู„ court ุงู„ type ุงู„ red type

348
00:26:57,650 --> 00:27:00,690
ุจูŠุนุทูŠู†ูŠ ุงู„ court ุญุงุฌุฉ ุนู„ู‰ ุงู„ table ู‡ุงุฏุฉ ู‡ุดูŠู„ ู…ู†ู‡

349
00:27:00,690 --> 00:27:03,710
ุงู„ red type ูˆ ุงู„ court ูˆ ุฃุฌูŠุจ ุงู„ primary ูƒูŠู…ูŠุง

350
00:27:03,710 --> 00:27:06,930
ู…ุซู„ุง ุงู„ red type ู‡ุถูŠูู‡ ูู‡ูŠุธู„ ุนู†ุฏูŠ ุงู„ red type ู…ุน

351
00:27:06,930 --> 00:27:10,210
ุงู„ start time ูˆ ุงู„ end time ูˆ ุงู„ court ู…ุงู„ู‡ ุฑุงุญ ู…ู†

352
00:27:10,210 --> 00:27:16,810
ุงู„ุฌุฏูˆู„ุฉ ุจู‡ูŠูƒ ุฃู†ุง ุงุชุฎู„ุตุช ู…ู† ุงู„ dependency ุงู„ู„ูŠ

353
00:27:16,810 --> 00:27:20,250
ู…ุงูƒุงู†ุด ููŠู‡ุง none prime ุงู„ู„ูŠ ูƒุงู† ููŠู‡ุง ู…ูˆุฌูˆุฏ prime

354
00:27:20,250 --> 00:27:23,550
ุจูŠุนุชู…ุฏ ุนู„ู‰ ุฌุฒุก ู…ู† ุงู„ keys ุงู„ู„ูŠ ุนู†ุฏูŠ

355
00:27:26,730 --> 00:27:36,190
ู‡ุฐุง ุงู„ุฌุฏูˆู„ ุจูŠุญู‚ู‚ ุดุฑูˆุท BCNF ุงู„ู„ูŠ ู‡ูŠ ุฃุนู„ู‰ ู…ุฑุญู„ุฉ ู…ู†

356
00:27:36,190 --> 00:27:43,850
ุงู„ normalization ุงู„ู…ุทู„ูˆุจุฉ ู…ู†ูƒู… ุฅุฐุง

357
00:27:43,850 --> 00:27:45,910
ุชุฎู„ุตู†ุง ู…ู† multi-value attributes ุจู†ูƒูˆู† ููŠ ุฃูŠ

358
00:27:45,910 --> 00:27:50,630
normal formุฅุฐุง ุชุฎู„ุตู†ุง ู…ู† ุงู„ partial functional

359
00:27:50,630 --> 00:27:54,850
dependencies ุฅุฐุง ุชุฎู„ุตู†ุง ู…ู† ุงู„ transitive

360
00:27:54,850 --> 00:28:01,350
functional ุฅุฐุง ุชุฎู„ุตู†ุง ู…ู† dependencies ู„ prime

361
00:28:01,350 --> 00:28:10,710
attributes ู…ุน non super key ุจู†ุณูŠุฑ ููŠ ุงู„ BCNF ูƒูŠู

362
00:28:10,710 --> 00:28:14,550
ุจู†ุชุฎู„ุต ู…ู† ุฃูŠ dependencies ู…ุง ุจุชุนุฌุจู†ูŠุŸุจุงุฎุฏ ุงู„ู€

363
00:28:14,550 --> 00:28:17,650
dependencies ุฒูŠ ู…ุง ู‡ูŠ ูˆ ุจุญุทู‡ุง ููŠ ุฌุฏูˆู„ ู„ุญุงู„ูŠ ุจุดุทุจ

364
00:28:17,650 --> 00:28:19,990
ุงู„ columns ุชุนูˆู†ู‡ุง ู…ู† ุงู„ุฃูˆู„ุงู†ูŠุฉ ู…ู† ุงู„ relation

365
00:28:19,990 --> 00:28:26,210
ุฃูˆู„ุงู†ูŠุฉ ูˆ ุจุฑุจุท ุจูŠู†ู‡ู… ุงู„ primary ู…ุน ุงู„ foreign ูŠุนู†ูŠ

366
00:28:26,210 --> 00:28:28,570
ู…ูุชุงุญ ุงู„ุญู„ ุงู† ุงุญุฏุฏ ููŠ ุงู„ุฃูˆู„ ู…ู† ุงู„ functional

367
00:28:28,570 --> 00:28:32,130
dependencies ุงู† ุงุฑุณู…ู‡ู… ุฒูŠ ู…ุง ุงู†ุง ูƒู†ุช ุงุฑุณู… ุงูƒุชุจ

368
00:28:32,130 --> 00:28:37,090
ุงู„ุงุณู… ูˆ ุณู‡ู… ูˆ ุฃุญุท ุฌู†ุจู‡ุง ุงู„ columns ุงู„ู„ูŠ ุจุชุนุทูŠู†ูŠ

369
00:28:37,090 --> 00:28:43,210
ุฅูŠุงู‡ู…ู‡ู„ ุฏุงุฆู…ุง ู…ู…ูƒู† ู†ุนู…ู„ ุงู„ normalization ูŠูƒูˆู†

370
00:28:43,210 --> 00:28:50,290
BCNFุŸ ุงู„ุฌูˆุงุจ ู„ุฃ ุนู„ู…ูŠุง ู„ุฃ ุงุญู†ุง ุญูƒูŠู†ุง ุงู„ first

371
00:28:50,290 --> 00:28:55,490
normal form ู†ุนุชุจุฑู‡ enough ูƒูุงูŠุฉ ุงู„ first normal

372
00:28:55,490 --> 00:29:00,370
form ู†ุนุชุจุฑู‡ ุงูŠุดุŸ ุงู„ first normal form critical ุงูŠุด

373
00:29:00,370 --> 00:29:05,310
ูŠุนู†ูŠ criticalุŸ ูŠุนู†ูŠ ุฃุณุงุณูŠ ู…ุงููŠุด relational

374
00:29:05,310 --> 00:29:11,000
database ุจุฏูˆู† first normalู‡ุฐุง ุงู„ูƒู„ุงู… ุญูƒูŠุชู‡ ุงู†ุง ุงู†ู‡

375
00:29:11,000 --> 00:29:12,860
ุจุฏูˆู† first normal ู…ุงููŠ database relational

376
00:29:12,860 --> 00:29:16,860
database ุงุฐุง ุงู„ first normal ูƒุฑูŠุชูŠูƒุงู„ 3NF enough

377
00:29:16,860 --> 00:29:21,020
is enough ูƒูุงูŠุฉ ู„ูƒู† ุงุฐุง ุจู‚ุฏุฑ ุงูˆุตู„ ู„ู…ุฑุงุญู„ ุงุนู„ู‰

378
00:29:21,020 --> 00:29:25,540
fourth ูˆ fifth ูˆ sixth ูˆ BCNF ูˆูƒุฐุง ุจูƒูˆู† ุงุญุณู† ู‡ู„

379
00:29:25,540 --> 00:29:31,760
ู…ู…ูƒู† ุฏุงุฆู…ุง ุงุชุฌุงูˆุฒ 3NF ู„ุฃ ุนู„ู…ูŠุง ู„ูˆ ููŠ ุนู†ุฏูŠ ุญุงู„ุฉู‡ูŠ

380
00:29:31,760 --> 00:29:34,360
ุงู„ู…ูˆุถูˆุน ุงู„ู„ูŠ ู‡ูˆ ุงู„ achievability of BCNF ู‡ู„ ู…ู…ูƒู†

381
00:29:34,360 --> 00:29:40,000
ู†ูˆุตู„ ู„ BCNF ุงู„ุฌูˆุงุจ ุงู†ู‡ in some cases ู„ุฃ ู…ุด ู…ู…ูƒู†

382
00:29:40,000 --> 00:29:44,380
ุงูˆุตู„ ู„ BCNF ู…ุซุงู„ ุงู„ู„ูŠ ุนู†ุฏูŠ ู„ูˆ ููŠ ุนู†ุฏูŠ A B ุจุชุนุทูŠู†ูŠ

383
00:29:44,380 --> 00:29:49,680
C ูˆ ุงู„ C ุจุชุนุทูŠู†ูŠ B table ุจู‡ุฐุง ุงู„ุดูƒู„ three columns

384
00:29:49,680 --> 00:29:55,140
ู…ู† three columns ูˆ ุจุงู„ dependencies ู‡ุฐู‡ ู…ุณุชุญูŠู„ ุงู†

385
00:29:55,140 --> 00:29:59,280
ุงุญุงูˆู„ ู„ BCNF ูƒุจูŠุฑ ูŠูˆุตู„ ู„ three NF

386
00:30:05,740 --> 00:30:08,440
ุทูŠุจ ุฅูŠุด ุงู„ู„ูŠ ุนู†ุฏูŠุŸ ุนู†ุฏูŠ person ูˆ shop type ูˆ

387
00:30:08,440 --> 00:30:12,520
nearest shop ุงู†ุง ู„ูˆ ุนุทูŠุชูƒู… ุงุณู… ุนู†ุฏูŠ ุฌุฏูˆู„ ุจุนุทูŠู‡ ุงุณู…

388
00:30:12,520 --> 00:30:17,790
ูˆุงุญุฏ ุณุงูƒู† ููŠ ู…ูƒุงู†ูˆ ู†ูˆุน ุงู„ shop ุงู„ู„ู‰ ู‡ูˆ ุจุฏู‡ูŠุง ุจุฏูˆุฑ

389
00:30:17,790 --> 00:30:21,410
ุนู„ูŠู‡ ุจุนุทูŠู‡ ุงู‚ุฑุจ ู…ุญู„ ุนู„ูŠู‡ ู†ูุฑุถ ุงู† ุชุนู…ู„ุชู‡ ุชุทุจูŠู‚ ุฌูˆุงู„

390
00:30:21,410 --> 00:30:25,170
ู…ุซู„ุง ุงูˆ website ู„ู„ูˆุงุญุฏ ูŠุณู‡ู„ ุนู„ู‰ ุงู„ูˆุงุญุฏ ูŠุนุฑู ูˆูŠู†

391
00:30:25,170 --> 00:30:28,090
ุงู‚ุฑุจ ู…ุญู„ ุนู„ูŠู‡ ุจุฏู‡ ู…ุฎุจุฒ ูˆูŠู† ุงู‚ุฑุจ ู…ุฎุจุฒ ุจุฏู‡

392
00:30:28,090 --> 00:30:32,250
supermarket ูˆูŠู† ุงู‚ุฑุจ supermarket ุจุฏู‡ ูŠุฑูˆุญ ุนู†ุฏ ุญู„ุงุก

393
00:30:32,250 --> 00:30:37,490
ุนู†ุฏ ู…ุญู„ ุจุตุฑูŠุงุช ูˆูŠู† ุงู‚ุฑุจ ู…ุญู„ ูุงุญู†ุง ุจู†ุนุทูŠู‡ ุงู„ุงุณู…ู†ูˆุน

394
00:30:37,490 --> 00:30:42,050
ุงู„ shop ุจูŠุนุทูŠู†ูŠ ุงุณู… ุฃู‚ุฑุจ ู…ุญู„ ุนู„ูŠู‡ ุนู„ูŠ ู…ุซู„ุง ุจุฏู‡

395
00:30:42,050 --> 00:30:46,050
supermarket ู‡ูŠ ุฃู‚ุฑุจ ู…ุญู„ ุนู„ูŠู‡ ุนู„ูŠ ุจุฏู‡ hairdresser

396
00:30:46,050 --> 00:30:52,150
ุญู„ู‚ ู‡ูŠ ุฃู‚ุฑุจ ู…ุญู„ ุฃุญู…ุฏ ุจุฏู‡ bookshop ุจุฏู‡ ู…ูƒุงู† ู„ู„ูƒุชุจ

397
00:30:52,150 --> 00:30:55,550
ู…ูƒุชุจุฉ ู…ุด ุงุณุชุนุงุฑุฉ bookshop ูŠุนู†ูŠ ู„ู„ุจูŠุน ุงุนุทูŠูƒ library

398
00:30:55,550 --> 00:31:02,840
ู„ู„ุงุณุชุนุงุฑุฉ ุชู…ุงู… ููŠ ู‡ู‰ ุงู„ู…ูƒุงู† table ุจู‡ุฐุง ุงู„ุดูƒู„ููŠ

399
00:31:02,840 --> 00:31:07,580
ู…ุดูƒู„ุฉ ุงู„ A, B ุจุชุนุทูŠู†ูŠ C ูˆ ุงู„ C ุจุชุนุทูŠู†ูŠ B ุชุนุงู„ู‰

400
00:31:07,580 --> 00:31:12,260
ู†ุดูˆู ุงูŠุด ููŠ ุนู†ุฏู‰ ู‡ุงูŠ ุงู„ candidate keys ุงู„ู„ู‰ ุนู†ุฏู‰

401
00:31:12,260 --> 00:31:16,680
ุนู†ุฏ ุงู„ person ูˆ ุงู„ shop type ุจูŠุนุทูˆู†ู‰ ู…ูŠู† ุงู„

402
00:31:16,680 --> 00:31:22,880
nearest shop ุงุฐุง ุนุฑูุช ุงู„ุดุฎุต ูˆ ุงูŠุด ุงู„ู…ุญู„ ู†ูˆุนู‡ ุงู„ู„ู‰

403
00:31:22,880 --> 00:31:29,240
ุจุฏูˆุฑ ุนู„ูŠู‡ ุจุนุทูŠู‡ ุงู‚ุฑุจ ู…ุญู„ ู„ุฐุง ู‡ุงูŠ A ูˆ B ุงุนุทูˆู†ู‰ ู…ูŠู†

404
00:31:31,300 --> 00:31:35,780
ุงุนุทูˆู†ูŠ C ู„ูƒู† ุนู†ุฏูŠ ู…ุดูƒู„ุฉ ุงู†ู‡ C ุจูŠุนุทูŠู†ูŠ ุจูŠู‡ ุงุฐุง ุนุฑูุช

405
00:31:35,780 --> 00:31:41,000
ุงุณู… ุงู„ู…ุญู„ ุจุนุฑู ุงูŠู‡ ุดูˆ ุจูŠุจูŠุน ูŠุนู†ูŠ ู…ุซู„ุง ู‡ุฐุง ุงู„ู…ุญู„

406
00:31:41,000 --> 00:31:44,100
ู…ุฎุจุฒ ุงูˆ ู‡ุฐุง supermarket ุงูˆ ู‡ุฐุง ูƒุฐุง ูุงู†ุง ุงุฐุง ุนุฑูุช C

407
00:31:44,100 --> 00:31:54,120
ุจุนุฑู ู…ูŠู† ุจุนุฑู B ู‡ุฐู‡ ู„ู…ุง ุจุงุฌูŠ ุจุฏูŠ ุงุฌุฒุฆู‡ุง ู„ูˆ ุญุงูˆู„ุช

408
00:31:54,120 --> 00:31:57,140
ุงุฌุฒุฆู‡ุง ู„ tables ู…ุงุชุธุจุทุด ู…ุนุงูŠุง

409
00:32:03,780 --> 00:32:08,780
ุทูŠุจ ุทุจ ุงู†ุง ุงุตู„ุง ู„ูŠุด ุจุฏูŠ ุงูˆุตู„ ููŠู‡ุง ุงู„ bcnf ู„ูŠุด ุงุตู„ุง

410
00:32:08,780 --> 00:32:11,520
ุจุฏูŠ ุงูˆุตู„ ููŠู‡ุง ุงู„ bcnf ู…ุงุจุฏูŠุด ุงู„ 3nf ูŠุนู†ูŠ ู„ูŠุด ุงู„

411
00:32:11,520 --> 00:32:17,460
bcnf ุงุญุณู† ู…ู† ุงู„ 3nf ุฏุนูˆู†ุง ู†ุดูˆู ู„ูŠุด ุงุญุณู† ุดุงูŠููŠู†

412
00:32:17,460 --> 00:32:22,660
ุงู„ู…ุญู„ ู‡ุฐุง ุงู„ eagle eye ู…ูƒุฑุฑ ู…ุฑุชูŠู† ูˆููŠ ุงู„ู…ุฑุชูŠู†

413
00:32:22,660 --> 00:32:26,520
ู…ูƒุชูˆุจ ุนู„ูŠู‡ ุงูŠุด supermarket ู…ุฑุฉ ุญูƒูŠู†ุง ุงู† ู‡ูˆ ุงู‚ุฑุจ

414
00:32:26,520 --> 00:32:29,200
supermarket ู„ุนู„ูŠ ูˆ ู…ุฑุฉ ุญูƒูŠู†ุง ุงู† ู‡ูˆ ุงู‚ุฑุจ

415
00:32:29,200 --> 00:32:35,830
supermarket ู„ุฃู…ู„ ุตุญุŸุฃูˆ ู„ูˆ ุงูุชุฑุถู†ุง ุงู† ู‡ุฐุง ุงู„ู…ุญู„ ุตุงุฑ

416
00:32:35,830 --> 00:32:38,930
ุนู†ุฏู‡ ู…ุดุงูƒู„ ูˆ ูŠุญูˆู„ ู…ู† supermarket ู„ mini market

417
00:32:38,930 --> 00:32:43,550
ูุงุชุญูˆู„ ู„ mini market ูู„ุฃู†ู‡ ุจุฏู†ุง ู†ุนู…ู„ update

418
00:32:43,550 --> 00:32:46,990
ู„ู„ู…ุนู„ูˆู…ุงุช ุจุชุงุนุชู‡ ุงุฑูˆุญ ู†ุนู…ู„ู†ุง ู„ู‡ update ููˆู‚ ุงู†ู‡

419
00:32:46,990 --> 00:32:51,840
mini market ูˆ ู†ุณูŠู†ุง ู†ุนู…ู„ู‡ุชุญุช ููˆุฑ ุงู„ุฌุฏุจู„ ุงู„ู‡ุฏู ุนู„ู‰

420
00:32:51,840 --> 00:32:55,460
ุงู„ุญู‚ูŠู‚ุฉ ุนู†ุฏูŠ ุฃู„ุงู ุงู„ู…ุดุชุฑูƒูŠู† ู…ุซู„ุง ููŠ ุงู„ุจุฑู†ุงู…ุฌ ู…ุนู†ุงู‡

421
00:32:55,460 --> 00:32:59,460
ุฃู†ู‡ ู„ุงุฒู… ุงู„ update ุฃุนู…ู„ู‡ุง ูŠู…ูƒู† ู…ุฆุงุช ุฃูˆ ุฃู„ู ู…ุฑุงุช ู„ูˆ

422
00:32:59,460 --> 00:33:02,940
ุงู†ุณูŠุช ูˆุงุญุฏุฉ ุจุณ ู‡ูŠุตูŠุฑ ุนู†ุฏูŠ data inconsistency ุนู†ุฏูŠ

423
00:33:02,940 --> 00:33:06,420
ู…ุดูƒู„ุฉ ููŠ ุงู„ data ุตุงุฑุช ููŠ ู…ูƒุงู† ู…ุนุฏู† ูˆู…ูƒุงู† ู„ุฃ ู†ูุณ

424
00:33:06,420 --> 00:33:08,620
ุงู„ู…ุดุงูƒู„ ุงู„ normalization ุงู„ู„ูŠ ูƒู†ุง ู†ุญูƒูŠ ุนู†ู‡ุง ุงู„

425
00:33:08,620 --> 00:33:12,880
update anomalies ูู‡ุฐุง ุงู„ table ููŠ ุงู„ 3NF ู…ุงุจุญู‚ู‚ุด

426
00:33:12,880 --> 00:33:18,540
ุงู„ BCNFูˆู‡ุฐู‡ ู…ุดูƒู„ุชู‡ ุฃู†ู‡ ุฃูŠ update ููŠ ุงู„ shop type

427
00:33:18,540 --> 00:33:25,220
ุฅุฐุง ู…ุงูƒุงู†ุด ูƒุงู…ู„ ู‡ูŠุนู…ู„ู„ูŠ ู…ุดุงูƒู„ ู‡ูŠุนู…ู„ู„ูŠ ู…ุดุงูƒู„ ูุงู†ุง

428
00:33:25,220 --> 00:33:28,560
ู…ุญุชุงุฌ ุฃู† ูŠุญุตู„ ููŠ ุงู„ BCNF ุจุณ ูุนู„ูŠุง ู…ุด ู…ู…ูƒู† ู†ุญุงูˆู„ู‡

429
00:33:28,560 --> 00:33:34,380
BCNF ู„ุฃู†ู‡ ูŠุชุจุน ุงู„ู‚ุงุนุฏุฉ ู‡ุฐู‡ ุดุงุฑุญ

430
00:33:34,380 --> 00:33:37,180
ุงู„ู…ุซุงู„ ุฃู†ู‡ ุนู†ุฏูŠ ุงู„ eagle eye ุจุฏูŠ ุฃุญูˆู„ู‡ ู…ูŠู†ูŠ ู…ุงุฑูƒุช

431
00:33:37,180 --> 00:33:42,600
ู‡ูŠุนู…ู„ู†ุง ู…ุดูƒู„ุฉ ูˆ ู‡ูŠุตูŠุฑ violationูˆู‡ูŠุนุทูŠู†ูŠ anomalies

432
00:33:42,600 --> 00:33:47,440
ุงู„ table is subject to anomalies ูู‰ ู…ุดุงูƒู„ ู„ุฃู†ู‡

433
00:33:47,440 --> 00:33:50,740
ู…ุงุจุญุงูุธุด ุนู„ู‰ ุงู„ BCNF normalization ู‡ูˆ ุจุณ ูู‰ ุงู„

434
00:33:50,740 --> 00:33:57,820
three normal form ู†ุงุฎุฏ

435
00:33:57,820 --> 00:34:06,680
ู…ุซุงู„ ู†ุงุฎุฏ ู…ุซุงู„ ู‡ูŠูƒ ุงุญู†ุง ุฎู„ุตู†ุง ูƒู„ normalization ุฏู‡

436
00:34:06,680 --> 00:34:12,280
ู†ุงุฎุฏ ู…ุซุงู„ ูˆู†ุญู„ู‡ ู…ุน ุจุนุถ ู‡ู‰ ูู‰ ุนู†ุฏูŠ tableููŠ clients

437
00:34:12,280 --> 00:34:19,480
ุจูŠุณุชุฃุฌุฑูˆุง ุนู‚ุงุฑุงุช ุดู‚ุงู‚ ูˆู…ุญู„ุงุช ููŠ ุนู†ุฏูŠ client number

438
00:34:19,480 --> 00:34:25,540
ูˆ client name property number ุฑู‚ู… ู„ู„ุนู‚ุงุฑ address

439
00:34:25,540 --> 00:34:31,000
ู„ู„ุนู‚ุงุฑ ุชุงุฑูŠุฎ ุจุฏุงูŠุฉ ุงู„ุงุณุชุฆุฌุงุฑ ุชุงุฑูŠุฎ ู†ู‡ุงูŠุฉ ุงู„ุงุณุชุฆุฌุงุฑ

440
00:34:31,000 --> 00:34:36,580
ู‚ูŠู…ุฉ ุงู„ุฃุฌุงุฑ ุฑู‚ู… ู„ุตุงุญุจ ุงู„ู…ู„ูƒ ุงู„ owner number ูˆ ุงู„

441
00:34:36,580 --> 00:34:41,000
owner nameู„ูˆ ูŠุฌูŠู†ุง ุนู„ู‰ ุงู„ client ู‡ุฐุง ุงู„ู„ูŠ ู‡ูŠ ุฑู‚ู…ู‡

442
00:34:41,000 --> 00:34:45,220
ุงู„ู„ูŠ ู‡ูŠ ุงุณู…ู‡ ู‡ู†ู„ุงู‚ูŠู‡ ุงู„ุณุงุฌุฑ ู…ุฑุชูŠู† ูู‡ู†ู„ุงู‚ูŠ ุงู†ู‡ ูƒู„

443
00:34:45,220 --> 00:34:49,340
ุนู‚ุงุฑ ู‡ูˆ ุงู„ุณุงุฌุฑ ูˆุฅู„ู‡ ุฑู‚ู…ู‡ ูˆุฅู„ู‡ owner ู…ูƒุฑุฑ ู…ุฑุชูŠู† ..

444
00:34:49,340 --> 00:34:51,800
ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู†

445
00:34:51,800 --> 00:34:53,600
.. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† ..

446
00:34:53,600 --> 00:34:54,040
ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู†

447
00:34:54,040 --> 00:34:54,900
.. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† ..

448
00:34:54,900 --> 00:34:58,520
ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู†

449
00:34:58,520 --> 00:34:59,820
.. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† ..

450
00:34:59,820 --> 00:35:01,900
ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู† .. ู…ุฑุชูŠู†

451
00:35:01,900 --> 00:35:05,960
.. ู…

452
00:35:07,160 --> 00:35:10,940
ุฒุจูˆู† ุชุงู„ุช ูƒุงู† ู…ุชุณุงุฌุฑ ุงุฑุจุนุฉ ูˆ ุฎู…ุณ ู…ุฑุงุช ูุงู†ุง ุนู†ุฏูŠ

453
00:35:10,940 --> 00:35:15,760
multivalues ู‡ุฐุง normalized ูˆู„ุง unnormalized ุงูˆู„ ุญู„

454
00:35:15,760 --> 00:35:22,120
ูƒูŠู ู†ุญูˆู„ู‡ ู„ first normalุŸ ุจุฏูŠ ุงุนูŠุฏ ุงู„ุจูŠุงู†ุงุช ู‡ุฐู‡

455
00:35:22,120 --> 00:35:28,260
ุฑู‚ู… ุงู„ุฒุจูˆู† ูˆุงุณู…ู‡ ูˆุญุท ู‡ุฐู‡ ููŠ row ู„ุญุงู„ุฉ ุตุญุŸ ูˆู‡ุฐู‡

456
00:35:28,260 --> 00:35:32,480
ูƒู…ุงู† row ูˆ ู‡ุฏูˆู„ ููŠ row ููŠ row ููŠ row ุญูŠุตูŠุฑ ุงู„ุฌุฏูˆู„

457
00:35:32,480 --> 00:35:37,320
ูƒุงู… rowุŸุจุฏู„ ู…ุง ูƒุงู† ููŠ ุงู„ุฃูˆู„ camera ููŠ ุงู„ุฃุตู„ ูƒุงู†

458
00:35:37,320 --> 00:35:41,140
ุงุชู†ูŠู† ู‡ูŠูƒ ุงู†ุง ุจุญุงูˆู„ ุงู„ first normal ู‡ูŠ ุดูƒู„

459
00:35:41,140 --> 00:35:43,420
ุงู„ุงู…ุชุญุงู† ุงู„ู„ูŠ ุจูŠุณุฃู„ ุนู†ู‡ ุดูƒู„ ุงู„ุงู…ุชุญุงู† ุงุดูŠ ุฒูŠ ู‡ูŠ

460
00:35:43,420 --> 00:35:47,300
ุชู…ุงู… ูƒูŠู ุจู†ุญุงูˆู„ ุงู„ first normal ู…ุดุฑูˆุน ุจุงู„ุชูุตูŠู„ ู†ูุณ

461
00:35:47,300 --> 00:35:55,720
ุงู„ู„ุช ูˆุงู„ุนุฌู„ ุงู„ู„ูŠ ุจู†ุญูƒูŠู‡ ูƒู„ ูŠูˆู… ู‡ูŠุตูŠุฑ ุนู†ุฏู‰ ุงู„ 5

462
00:35:55,720 --> 00:36:02,020
columns ู‡ุฏูˆู„ ุจุงู„ุดูƒู„ ู‡ุฐุง ุจุฏู‰

463
00:36:02,020 --> 00:36:06,720
ุงุญูˆู„ ู„ู„ second normal formููŠ ุนู†ุฏูŠ partial

464
00:36:06,720 --> 00:36:11,860
dependences ูˆู„ุง ู…ููŠุดุŸ ูˆูŠู†ุŸ ูŠู„ุง ู…ูŠู† ูŠุญูƒูŠ ู„ูŠุด ููŠ

465
00:36:11,860 --> 00:36:19,600
ุนู†ุฏูŠ dependencesุŸ ุงุญู†ุง

466
00:36:19,600 --> 00:36:24,440
ุฅุฐุง ุนุฑูู†ุง ุงู„ client number ู‡ู†ุนุฑู ู…ูŠู† ุงู„ property

467
00:36:24,440 --> 00:36:29,780
name ูˆ ู„ุง ุงู„ .. ูˆ ู„ุง ุงู„ c name ู‡ู†ุนุฑู ุงู„ c name

468
00:36:29,780 --> 00:36:36,530
client number ุจุฎู„ูŠู†ูŠ ุฃุนุฑู ุงู„ client nameูˆ ุงู„

469
00:36:36,530 --> 00:36:41,850
property ุจุนุฑู ุงู„ address ูˆ ุงู„ owner ุจุฎู„ูŠู†ูŠ ุฃุนุฑู

470
00:36:41,850 --> 00:36:51,890
ู…ูŠู† ุงู„ owner name ุตุญ ุทูŠุจ ุฅูŠุด ูƒู…ุงู† ุฅุฐุง ุฃู†ุง ุนุฑูุช ุงู„

471
00:36:51,890 --> 00:36:58,630
client ู…ุน ุงู„ property ุงู„ุฅุชู†ูŠู† ู…ุน ุจุนุถ ุจุนุฑู ุงู„ start

472
00:36:58,630 --> 00:37:05,620
ูˆ ุงู„ finishุงู„ rent ู…ุฑุจูˆุท ู…ุน ุงู„ property number ู…ุน

473
00:37:05,620 --> 00:37:11,640
ุงู„ address ู…ุน ุงู„ rent ูƒู…ุงู† ูุนู†ุฏูŠ ููŠู‡ ุชุดุนุจุงุช ููŠ

474
00:37:11,640 --> 00:37:17,680
ุงู„ุนู„ุงู‚ุงุช ุจุฏูŠ ุฃุฑุณู…ู‡ุง ูƒู„ู‡ุง ูˆ ุฃุญุทู‡ุง ูˆ ุฃุฑุณู… ูƒู„ ูˆุงุญุฏุฉ

475
00:37:17,680 --> 00:37:21,660
ุจุชุนุฑูู†ูŠ ู…ูŠู† ุจุญูŠุซ

476
00:37:21,660 --> 00:37:26,260
ุฃู†ูŠ ุฃุทู„ุนู‡ู… ู‡ูˆ ู…ุจุฏุฆูŠุง ููŠ ุงู„ุฌุฏูˆู„ ู‡ุฐุง ู…ุนุชุจุฑ ุนู†ุฏู‡ ู…ูŠู†

477
00:37:26,260 --> 00:37:28,540
ุงู„ primary key ุงู„ู„ูŠ ุจุนุทูŠู†ูŠ ูƒู„ ุงู„ุณุทุฑ ู…ุนุชุจุฑ ุงู„

478
00:37:28,540 --> 00:37:32,790
client number ู…ุน ุงู„ property numberู‡ูˆ ู…ุนุชุจุฑ ุงู† ุงู„

479
00:37:32,790 --> 00:37:35,590
client number ู…ุน ุงู„ property number ู‡ุฏูˆู„ ุงุชู†ูŠู†

480
00:37:35,590 --> 00:37:43,530
ุจูŠุนุทูˆู†ูŠ ุจุงู‚ูŠ ุงู„ุณุทุฑ ูุฅุฐุง ู„ุงุญุธู†ุง ู‡ูŠูƒูˆู† ุนู†ุฏู‰ ุงู„ rent

481
00:37:43,530 --> 00:37:48,610
ูˆ ุงู„ address ุจูŠุนุชู…ุฏูˆุง ุนู„ู‰ ุฌุฒุก ู…ู† ุงู„ primary key ู‡ูŠ

482
00:37:48,610 --> 00:37:52,430
partial ูุจุชุชุฎู„ุต

483
00:37:52,430 --> 00:37:55,670
ู…ู† ูƒู„ ู‡ุฏูˆู„ ุงู„ partials ููŠ ุฌุฏุงูˆู„ ู‡ุงูŠ ุฃูˆู„ ุฌุฏุงูˆู„

484
00:37:55,670 --> 00:38:01,290
ู‡ุนู…ู„ู‡ ุญุท ู„ client number ู…ุนู…ุน ุงู„ cinema ูˆู†ุญุทู‡ู… ูˆ

485
00:38:01,290 --> 00:38:03,910
ู†ุงุฎุฏ ุจุณ ุงู„ client number ูˆ ู†ุฎู„ูŠู‡ ููŠ ุงู„ table ูˆ

486
00:38:03,910 --> 00:38:08,230
ู†ุดูŠู„ ู…ูŠู† ุงู„ cinema ูˆ ู†ูุณ ุงู„ุงุดูŠ ู‡ูƒุฑุฑู‡ ู…ุน ุงู„ owner

487
00:38:08,230 --> 00:38:11,910
ุงู„ owner number ูˆ ุงู„ owner name ู‡ุฑูˆุญ ู†ุญุท ุงู„ owner

488
00:38:11,910 --> 00:38:15,430
ููŠ ุฌุฏูˆู„ ูˆ ุงู„ client ููŠ ุฌุฏูˆู„ ูˆ ุงู„ property ููŠ ุฌุฏูˆู„

489
00:38:15,430 --> 00:38:18,410
ูˆ ู‡ุฐุง ุงู„ูƒู„ุงู… ุงุตู„ุง ูˆ ุงุญู†ุง ุงุดุชุบู„ู†ุง design ุตุญ ููŠ ุงู„

490
00:38:18,410 --> 00:38:23,070
ER model ุงุตู„ุง ูƒุงู† ุญูŠูƒูˆู† ู‡ู… ููŠ ุฌุฏุงูˆู„ ู…ุด ู‡ุญุชุงุฌ ู„ูƒู„

491
00:38:23,070 --> 00:38:25,430
ุงู„ุบู„ุจุฉ ู‡ุงูŠ ู…ุน ุฌุฏูˆู„ ุฒูŠ ู‡ุฐุง

492
00:38:33,160 --> 00:38:42,860
ู…ุซุงู„ ุชุงู†ูŠ ู‡ุชูƒู…ู„ูˆุง

493
00:38:42,860 --> 00:38:45,460
ุนู„ูŠู‡ ุงู†ุชูˆุง ุงู„ู…ุซุงู„ ู‡ุชูƒู…ู„ูˆุง ุนู„ูŠู‡ ู‡ุชุญุทูˆุง ุงู„ owner

494
00:38:45,460 --> 00:38:48,020
ู„ุญุงู„ ู‡ุชุญุทูˆุง ุงู„ client ู„ุญุงู„ ุงู„ property ู„ุญุงู„

495
00:38:48,020 --> 00:38:50,700
ู‡ุชุฑุจุทูˆุง ููŠ ุงู„ุขุฎุฑ ุจูŠู†ู‡ู… ุจุณ ุงู„ primary key ุชุจุน ุงู„

496
00:38:50,700 --> 00:38:53,540
correlation ู‡ุชู…ุดูŠ ุนู„ู‰ ุงู„ุฎุทูˆุงุช ู…ุจุงุดุฑุฉ ู…ุซุงู„

497
00:38:53,540 --> 00:39:00,250
straightforward ุจุฏูˆุด ุฅุดูŠู‡ูŠ ุนู†ุฏูŠ ู…ุซุงู„ ุณุจู„ุงูŠุฑ number

498
00:39:00,250 --> 00:39:08,910
ูˆ name ูˆ part number ุณุจู„ุงูŠุฑ

499
00:39:08,910 --> 00:39:16,930
S2 ูƒู… part ุจูŠุนุทูŠู†ูŠ ุงู„ู„ูŠ ุจุนุฏ ู‡ูˆ S9 ุณุจู„ุงูŠุฑ S9

500
00:39:16,930 --> 00:39:21,450
ุจูŠุนุทูŠู†ูŠ three parts ุฃูˆู„ ุฎุทูˆุฉ ููŠ ุงู„ normalization

501
00:39:21,450 --> 00:39:26,970
ู†ุญูˆู„ูƒู„ ูˆุงุญุฏุฉ ููŠ ุฑู‚ูˆุฉ ู„ุญุงู„ูŠ ุนู†ุฏูŠ ูˆุงุญุฏุฉ ุชู†ุชูŠู† ุชู„ุงุชุฉ

502
00:39:26,970 --> 00:39:31,550
ุงุฑุจุนุฉ ุฎู…ุณุฉ ุณุชุฉ ุณุจุนุฉ ู„ุงุฒู… ูŠุตูŠุฑูˆุง ุณุจุนุฉ .. ุณุจุนุฉ ุฑูˆุฒ

503
00:39:31,550 --> 00:39:34,690
ู‡ูŠูƒ ุงู†ุง ุจูƒูˆู† ููŠ ุงู„ first normal ุจุนุฏ ู…ุง ุญูˆู„ู†ุง ุงู„

504
00:39:34,690 --> 00:39:39,650
first normal ุงูŠุด ู…ู…ูƒู† ู†ุนู…ู„ ู…ู…ูƒู† ุงุฎุฏ ุงู†ุง supplier

505
00:39:39,650 --> 00:39:48,630
name ูˆ supplier number ููŠ ุฌุฏูˆู„ ู„ุญุงู„ูŠ ู‡ุงูŠ

506
00:39:48,630 --> 00:39:49,750
ุงู„ุงู† ุจุชุญูƒูŠู„ูƒู… ู„ูŠุด

507
00:39:52,820 --> 00:39:57,360
ุงู„ู†ู…ุจุฑ ุงู„ุณุจู„ุงูŠุฑ ุงู„ S number ุจูŠุนุทูŠู†ูŠ ู…ูŠู†ุŸ ุจูŠุนุทูŠู†ูŠ

508
00:39:57,360 --> 00:40:03,440
ุงู„ supplier name ูˆ ุจูŠุนุทูŠู†ูŠ ู…ูŠู† ูƒู…ุงู†ุŸ ุจูŠุนุทูŠู†ูŠ ุงู„

509
00:40:03,440 --> 00:40:07,000
part number ู„ุฃ ุจูŠุนุทูŠู†ูŠุด ุงู„ part number ู„ุฃู† ู‡ุงูŠ ููŠ

510
00:40:07,000 --> 00:40:10,820
ุนู†ุฏูŠ S5 ูˆ S2 ุงู„ุงุชู†ูŠู† ุจูŠุนุทูˆู†ูŠ part one part one

511
00:40:10,820 --> 00:40:14,340
ุจูŠุนุทูŠู†ูŠุด ู†ูุณูŠ ุงู„ S supplier number ุจูŠุนุทูŠู†ูŠ ุจุณ ุงู„ S

512
00:40:14,340 --> 00:40:21,250
name ุงู„ supplier numberู…ุน ุงู„ part number ุนุจุงุฑุฉ ุนู†

513
00:40:21,250 --> 00:40:27,790
ุงู„ primary key ู„ู„ุฌุฏูˆู„ ู‡ุฐุง primary key ุงู„ primary

514
00:40:27,790 --> 00:40:31,010
key ุชุจุน ู‡ุฐุง ุงู„ุฌุฏูˆู„ ุงู„ supplier ูˆ ุงู„ part ุงู„ู„ูŠ

515
00:40:31,010 --> 00:40:34,830
ุจูŠุนุทูŠู†ูŠู‡ ุณุจู„ุงูŠุฑ ุฎู…ุณุฉ ุจูŠุนุทูŠู†ูŠ part one ุณุจู„ุงูŠุฑ ุงุชู†ูŠู†

516
00:40:34,830 --> 00:40:37,190
ุจูŠุนุทูŠู†ูŠ part one ุณุจู„ุงูŠุฑ ุงุชู†ูŠู† ุจูŠุนุทูŠู†ูŠ part ุงุฑุจุนุฉ

517
00:40:37,190 --> 00:40:41,790
ุงู„ supplier ูˆ ุงู„ part ู‡ูˆ ุงู„ primary key ุจูŠุนุทูŠู†ูŠ ุงุด

518
00:40:41,790 --> 00:40:44,210
ุชุงู†ูŠ ุจูŠุนุทูŠู†ูŠุด ุฎู„ุงุต ูˆ ุจูŠุนุทูŠู†ูŠ ุงู„ุฌุฏูˆู„ ูŠุนู†ูŠ ู‡ุฏูˆู†

519
00:40:44,210 --> 00:40:48,460
ุจูŠุนุทูŠู†ูŠ two columns ู‡ุฏูˆู†ูุงู†ุง ุจุณ ุงู„ู„ูŠ ุจุชุชุฎู„ุต ู…ู†ู‡ุง

520
00:40:48,460 --> 00:40:53,220
ู…ูŠู† ู‡ุงุฏูŠ ุงู„ number ุจุชุนุทูŠู†ูŠ ุงู„ name ู„ูŠุด ู„ุฃู† ุงู„

521
00:40:53,220 --> 00:40:58,940
number ุฌุฒุก ู…ู† ู…ูŠู† partial ู…ู† ุงู„ primary ูŠุนู†ูŠ ุฃู†ุง

522
00:40:58,940 --> 00:41:03,720
ุจุญู‚ู‚ุด ููŠ ู‡ุฐุง ุงู„ุฌุฏูˆู„ ู…ุง ุจุญู‚ู‚ ู…ูŠู† ู…ุง ุจุญู‚ู‚ ุงู„ second

523
00:41:03,720 --> 00:41:08,920
normal form ูุจุนุฏ ู…ุง ุฃุนู…ู„ ุงู„ rows ุฒูŠ ู…ุง ุญูƒูŠู†ุง ูƒู„

524
00:41:08,920 --> 00:41:11,540
ูˆุงุญุฏุฉ ููŠ ุฑูˆู„ุฉ ุญุงู„ู‡ุง ุงู„ุฎุทูˆุฉ ุงู„ู„ูŠ ุจุนุฏู‡ุง ุงู†ูŠ ุจุชุชุฎู„ุต

525
00:41:11,540 --> 00:41:15,440
ู…ู† ุงู„ partialุงู„ supplier number ุจุชุนุทูŠู†ูŠ ุงู„ name

526
00:41:15,440 --> 00:41:18,780
ุจุชุญุทู‡ุง ููŠ ุฌุฏูˆู„ ู„ุญุงู„ู‡ุง ุงู„ supplier number ุจุชุนุทูŠู†ูŠ

527
00:41:18,780 --> 00:41:22,980
part number ููŠ ุฌุฏูˆู„ ูˆ ู‡ุงุฎุฏ ุงู„ supplier number ู‡ุฐุง

528
00:41:22,980 --> 00:41:28,280
.. ุขุณู ู‡ูŠ ุงู„ supplier number ู…ุน ุงู„ supplier name ูˆ

529
00:41:28,280 --> 00:41:30,800
ู‡ูŠ ุงู„ supplier number ู…ุน ุงู„ part number ููŠ ุฌุฏูˆู„

530
00:41:30,800 --> 00:41:37,800
ู„ุญุงู„ู‡ู… ู‡ุงูŠ ุงู„ two relations ุงู„ู„ูŠ ุนู†ุฏูŠ ููŠ

531
00:41:37,800 --> 00:41:41,380
ุงูŠุด ุถุงูŠู‚ ุจุชูƒูˆู† ู…ูŠุงู‡ ููŠ ุงู„ normalizationุŸุฃุณุฆู„ุชู‡

532
00:41:41,380 --> 00:41:44,840
ุณู‡ู„ุฉ ูˆ ู…ุจุงุดุฑุฉุŒ ุบุงู„ุจุง ู„ู…ุง ุญุงุทู„ูƒู… ุนู„ูŠู‡ quiz ู†ูุณ

533
00:41:44,840 --> 00:41:48,040
ุฃุณุฆู„ุชู‡ ููŠ ุงู„ quiz ู‡ุชูƒูˆู† ููŠ ุงู„ุงู…ุชุญุงู† ุงู„ู†ู‡ุงุฆูŠุŒ ุบุงู„ุจุง

534
00:41:48,040 --> 00:41:52,220
ุดูƒู„ ุงู„ุณุคุงู„ ุฃู†ูŠ ุจุญุท ุฃู†ุง ุฌุฏูˆู„ ุจุญูƒูŠู„ูƒู… ุงุนู…ู„ูˆุง ู„ูŠู‡

535
00:41:52,220 --> 00:41:56,200
normalization ุจู‚ุฏุฑ ุงู„ู…ุณุชุทุงุนุŒ ุชูƒูˆู†ูˆุง ุชุญุงูˆู„ูˆุง ุชุนู…ู„ูˆุง

536
00:41:56,200 --> 00:42:01,030
normalization ู„ู„ุขุฎุฑุงู„ุงู† ู‡ุฐุง ุดูƒู„ ุงู„ normalization

537
00:42:01,030 --> 00:42:03,710
ุทู„ุน ุนู†ุฏู‰ ุงู†ุง ุจุณ ุงุฎุฑ ู…ุนู„ูˆู…ุฉ ู…ุงุจุชุญูƒูŠู‡ุง ุงุญู†ุง ููŠ

538
00:42:03,710 --> 00:42:08,870
ุงู„ู…ุซุงู„ ู‡ุฐุง ู…ุซู„ุง ุงุชุฎู„ุตู†ุง ู…ู† ุงู„ un-normalized ุตุญุŸ ูˆ

539
00:42:08,870 --> 00:42:13,430
ุงุชุฎู„ุตู†ุง ู…ู† ู…ุดูƒู„ุฉ ุงู„ second normal ุจุงู„ partial ู‡ู„

540
00:42:13,430 --> 00:42:17,450
ุนู…ู„ู†ุง ุงูŠุด ุจุฎุตูˆุต ุงู„ thirdุŸ ู‡ูˆ ุนุงู…ู„ ู„ุญุงู„ู‡ ู…ุงููŠุด ููŠู‡

541
00:42:17,450 --> 00:42:20,750
ุงุตู„ุง transitive ุนู…ู„ู†ุง ุงูŠุด ุจุฎุตูˆุต ุงู„ bcfุŸ ู‡ูˆ ุงุตู„ุง

542
00:42:20,750 --> 00:42:26,040
ุจุญู‚ู‚ ุดุฑูˆุท ุงู„ bcf ูุนู„ูŠุง ุงู„ two tables ู‡ุฏูˆู„ุจุญู‚ู‚ูˆุง

543
00:42:26,040 --> 00:42:29,240
ุดุฑูˆุท ุงู„ b,c,f ูˆุดุฑูˆุท ุงู„ third normal ูˆ ุงู„ second ูˆ

544
00:42:29,240 --> 00:42:32,420
ุงู„ first ุบูŠุฑ ุงู† ุงุญู†ุง ู…ุง ุงุดุชุบู„ู†ุงุด ุบูŠุฑ ู„ู„ first ูˆ ู„ู„

545
00:42:32,420 --> 00:42:32,780
second