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Fast SQL
Message
From
27/08/2004 09:31:49
 
 
To
27/08/2004 09:25:38
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivia
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Miscellaneous
Thread ID:
00936943
Message ID:
00936961
Views:
18
>Since they both have to search within a character string, they should be approximately equal. Some differences have been reported in the past, but I suspect that the results have been skewed through buffering. You should be careful about this, when you do your own speed tests (the second test on the same data will be faster, because of buffering).
>
>What is important to note is that none of the two can make use of Rushmore Optimization, i.e., use existing indices to optimize a query.



And neither of them translates out if you ever want to move the query to SQL Server or similar (through SPT).


Alex Feldstein, MCP, Microsoft MVP
VFP Tips: English - Spanish
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