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08/10/2002 at 06:20AM PDT, ID: 20334875
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5.8

Relation between lookup tables

Asked by bdrmki in Databases Miscellaneous

Tags: badr, can, relations

Hi

I have 3 lookup tables:

Departments (DeptID,deptName)
Sections   (secID,SecName)
Devisions (DivID,DIvName)
the departments contains sections
and sections contains devisions

i make relations between this tables using 2 ways:

(1)
Departments (DeptID,DeptName)
DeptID As PK(Primary key)

Sections   (DeptID,SecID,SecName)
DeptID,SecID as PK
DeptID as foriegn key(FK)

Devisions (DeptID,SecID,DivID,DivName)
DeptID,SecID,DivID as PK
DeptID,SecID as FK

(2)

Departments (DeptID,DeptName)
DeptID As PK(Primary key)

Sections   (DeptID,SecID,SecName)
SecID as PK
DeptID as foriegn key(FK)

Devisions (SecID,DivID,DivName)
DivID as PK
SecID as FK

1- which of these are right and why?
2- is there any site which i can refer for this?

tahnks
Badr

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About this solution

Zone: Databases Miscellaneous
Tags: badr, can, relations
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Solution Provided By: Netminder
Participating Experts: 7
Solution Grade: A
 
 
 
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