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Best way to generate key field values
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23/07/1998 10:07:03
Mandy Mccord
Public Interest Breakthroughs, Inc.
Albany, New York, États-Unis
 
 
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Forum:
Visual FoxPro
Catégorie:
Autre
Titre:
Best way to generate key field values
Divers
Thread ID:
00120429
Message ID:
00120429
Vues:
58
Just curious what folks think out there regarding what's the best way to generate key field values when adding new records to tables.

When my users click the ADD button, I've been running code to use the table in the key field order, go bottom, find the last value and add 1 to it for the new record's key field value.

It seems to be working fine, though I realized I had to play with my SET DELETED ON/OFF commands so my next value was unique and not the same as a deleted record's.

I know some folks keep separate tables to track the next available key value for their tables. I'm assuming it looks like a 2 field table, one for the table's name, one for the next value. You'd then check there for the next value you want to assign.

Any way better than any other??

MTIA!!

Mandy
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