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SQL speed issue
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
Divers
Thread ID:
00468019
Message ID:
00468025
Vues:
23
>Here's the statement:
>
>SELECT Base_Payment.PIN, ;
> Base_Payment.Payment_Key ;
> FROM Base_Payment ;
> WHERE Base_Payment.Payment_Key = 10348 ;
> INTO CURSOR ;
> C_SomeCursor
>
>466 Celeron, 128 Ram, Win98, VFP 6.0 SP3
>
>There are 5 indexes, 3 on dates, one for PIN (Primary) and
>one for the Payment_Key. PIN and Payment_Key are integers.
>The above statement will return 36 records, but it takes
>a WHOPPING 141 seconds to do so. I know this isn't right
>or at least I wouldn't think so. OPTIMIZE is ON and I've
>deleted and recreated the indexes.
>
>What's wrong with this picture?
>
>Thanks,
>Steve

And I forgot to add; the base_payment table is 300 mb.
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