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Something slowing down from the application
Message
From
26/03/2008 09:33:00
Michel Fournier
Level Extreme Inc.
Petit-Rocher, New Brunswick, Canada
 
 
To
26/03/2008 09:23:47
Walter Meester
HoogkarspelNetherlands
General information
Forum:
ASP.NET
Category:
Databases
Title:
Re: Something slowing down from the application
Environment versions
Environment:
VB 8.0
OS:
Windows XP SP2
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01305122
Message ID:
01305638
Views:
6
>The problem certainly has to do with poor optimization. In the first case SQL server cannot optimize the query because it has no clue on what is going to be in @Altern_ID. Therefore it is scanning indexes. The reason the TOP 1 is faster is because it stops scanning when it finds a match.

If that is the case, how can we explain that with the other field, I never had this problem?
Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
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