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Rushmore optimization and SELECT DISTINCT
Message
De
11/12/1997 09:43:25
 
 
À
09/12/1997 23:36:18
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00064798
Message ID:
00065234
Vues:
36
>>but I my opinion Rushmore SHOULD be about using existing indexes to achieve the fastest query performance possible.
>
>
>>To ignore UNIQUE index tags is a waste and to be able to beat the performance of SQL by an order of magnitude
>>with old style xbase code is crazy.
>
>Do you have deleted records in your table that has UNIQUE indexes?
>
>Vlad

Sometimes I have deleted records - other times not. Also, when there might be deleted records, I add the FOR NOT DELETED() to the tag.
__________________________________________________
Mesa Vista Software (david@mesa-vista.com)
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