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To
06/06/2003 03:03:34
Cetin Basoz
Engineerica Inc.
Izmir, Turkey
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Miscellaneous
Thread ID:
00797053
Message ID:
00797081
Views:
17
I am mainly an Oracle guy. So it was tough for me to digest.

Aashish

>>Hi,
>>
>>Primary key accepts empty values. Should Primark Key behave like this ?
>>Am I wrong somewhere ?
>
>If a primary key is accepting an empty value it's normal. It ensures value would be unique but doesn't guarantee it wouldn't be empty. ie: For an integer PK 0 is a perfectly legal value.
>But if a primary key is accepting empty values then you've a problem. Keys might not be updating at all.
>Not empty is something you should control as well as not null.
>Cetin
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Aashish Sharma
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