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PHỤ THUỘC HÀM VÀ CÁC DẠNG CHUẪN

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Chương 8
PHỤ THUỘC HÀM VÀ CÁC DẠNG CHUẨN
 


 !"#$

%!& 

'()
 *


+'$

,-./

010234 5678"9:

; 

<1

=>=

,'7?@AA7'B!
 C


D0D /
E


"#$;
E
F8&GH

''30/5)6 !"#$-7;;I:

+'!IJ

KL '7?7MN>7'B!J

KL '7?7'B!J

/>O>'B!30/G'"?6

?+'()"G5 &'"''35)6

P(7;)"#$
 Q


A& D&",,"'7?!I"77 !B!H

D0D !"#",R&LI+1J

K'!I7;$S-,0/"7MN>J
 T
 !"

 !>U1,V7. !F>U0'W11-7M
N>J

 X
#$%&'(%

D0D$"YZ[PP8=> !=>'lược đồ
quan hệ tốt.

\D0D]#^1V_P87MN>/J
Lending-schema là một sự thiết kế tốt hay tồi ?
Lending-schema
 `
#$%&'(%

(A5a5 & !-D0D#H

a-7MN>:B7 5bB7Vb5

F0/

=>=>c(>

A& D&",V,"d"#A5& ! !"#F:

e7f"#
 g
")*

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&V&& L -7MN>/J

"SI$7hU>LV7W7F$'7W>e7f:


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>e7fJ

jL&>%!:'7&B!7;$F>L""L BLY7;'$
">e7fJ
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")*

e7fA55 &"#:

Branch-schema = 3branch-name, branch-city,assets6

Loan-info-schema = 3customer-name, loan-number, branch-name, amount6

A=BL&:L'!I7"#F>L"W V7'
"#>e7fJ
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"f=>J

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an:>Ln/''7?'B!;$J
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Tênphim Nămsx Thilư!ng Lo#iphim Xư%ngsx Di'nviên
     
     
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      !!"
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K'7?@AA1,GLV7'7o>:

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2-342567

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 kQ
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89256

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V5
A→AC
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;H
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+256

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J


s-8&7;azz:

zzv 5

 5vzz

V;b{1>:

zzv 5
kg
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     
     
     
      !!"
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W "9
*>?→-@:;
*>?→A7
*>?→+:B
*>?→C".
E,F*GHF
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     
     
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      !!"
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
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<O,;
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     
     

      !!"
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*→A7
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