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Handling Deleted Records
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20/07/2000 17:58:03
 
 
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Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
Handling Deleted Records
Divers
Thread ID:
00395145
Message ID:
00395145
Vues:
39
What is the common wisdom for handling deleted
records with respect to unique keys? When you
go to INSERT a record with an identical key as
a deleted on you get a uniqueness error.

I have tried filtering on NOT DELETED(), but 1)
it doesn't work, and 2) you can't use the
index in otherwise optimizable queries. I have
also tried prefixing one of the fields with a
character (!, ~, X, etc) to keep the record unique
with varying levels of success, 3) having those
two reasons, I didn't really need to find
anymore :-)

Deleting records in this application is fairly
uncommon so I don't want to have to write scads
of code to reuse deleted records.

Craig, I'm sure you have an article in your
knowledge base. I'm going to look now ;-))

Thanks in advance...

...kt
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