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Setting filters on large data tables
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Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00619801
Message ID:
00620054
Vues:
14
Larry,

I think the answer to your question lies in the answer to this question:

Are you trying to filter out a large number of records relative to the total number of records in the table?

The reason that question is important is that filters work very well when you are attempting to remove a few records from a result, whereas a SQL Select statement works better when attempting to select on small subset of information.

HTH,

Travis

>Hi -
>ANy suggestions on increasing peformance when applying a filter to a large table. Its seems to be taking forever.
>Unfortunately we can can't put the filter expression into the index.
>
>Any ideas please
>
>Thanks,
>
>Larry
Travis Vandersypen
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