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Here I go again: circular relationships?
Message
De
09/08/2000 17:30:36
Jill Derickson
Software Specialties
Saipan, CNMI
 
 
À
09/08/2000 13:06:54
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00402659
Message ID:
00403087
Vues:
15
Thanks for responding, Doug.

>StudentYear: iPKStudentYear, iFKStudentID, iyear
>AwardsAppliedFor: iPKAwardsAppliedFor, iFKStudentYear, iFKAward, lApproved
>Awards: iPKAward, cDescription, iAmount, etc.
>StudentPeriod: iPKStudentPeriod, iFKStudentYear, iFKAcademicPeriod, iFKAward
>AcademicPeriod: iPKAcademicPeriod, ...describes period ...

>How about relating StudentPeriod to AwardsAppliedFor instead? IOW:

>StudentPeriod: iPKStudentPeriod, iFKAwardsAppliedFor, iFKAcademicPeriod

Looks like that would work also, but the relationships would still be circular, I think (If I'm understanding it right). The tables would be more closely related...

AwardsAppliedFor and StudentPeriod both relate to Awards...

Guess I'm a bit confused...is this circularity necessarily a "bad" design?

Thanks for your input, J
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