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SQL LIKE and Rushmore optimization
Message
De
20/01/2006 08:19:52
Mike Yearwood
Toronto, Ontario, Canada
 
 
À
20/01/2006 07:26:32
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP2
Network:
Windows XP
Database:
Visual FoxPro
Divers
Thread ID:
01088808
Message ID:
01088850
Vues:
24
Hi Denis

What are you trying to do? How many printer records can you have in this table?

>Hi Again...
>I try to do next way
>
>INDEX ON "1"+UPPER(Description) TAG Test1
>
>SELECT * FROM table WHERE "1"+UPPER(Description) like "1%HP%DRUCKER"
>
>SYS(3054) show result about Test1 and Deleted Tags using in the Rushmore optimization, but optimization level still is "partial"
>
>And... time of exec query realy looks not good....
>
>
>>Hello,
>>
>>a LIKE condition which starts with % cannot be optimized.
>>
>>Regards
>>Christian
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