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Any side effects in allowing NULL?
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Forum:
Visual FoxPro
Catégorie:
Autre
Titre:
Any side effects in allowing NULL?
Versions des environnements
Visual FoxPro:
VFP 9 SP1
Divers
Thread ID:
01539772
Message ID:
01539772
Vues:
137
Hi,

Now that I have a couple of customers using my VFP application with SQL Server database I ran (once in a while) into a problem with NULLs. Here is what happens. In many places in the program the code creates an empty cursor. And then this cursor is populated from other cursors retrieved from SQL Server. And when adding a record to the initial empty cursor and a value happens to be NULL, the program bombs with an error (column COLNAME does not allow NULLS). In order to eliminate this issue I am thinking of always specifying/allowing NULL for every column of the empty cursor. Just in case. Will it slow down the processing of this cursor? The cursor usually is not very big, maybe up to 2000 records. What do you think? TIA.
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