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9.5

microsoft sql query running slowly

Asked by juliandormon in SQL Server 2005, SQL Query Syntax

Tags: ms sql slow query

Somebody help me write the following query which returns the conditional data properly, but only sometimes takes a really long time to execute - other times not so long - even with the exact same parameters.

I have rebuilt my indexes, but the result is the same.

Perhaps the query has to be reworked? Can you offer any suggestions? 
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SELECT DISTINCT m.*, 
inCart = CASE WHEN EXISTS(
SELECT 1 FROM BBB_EventProjectOrderDetails d
WHERE  m.EventMediaID = d.EventMediaID AND d.EventProjectOrderID = @EventProjectOrderID
) THEN 1 ELSE 0 END,
inFav = CASE WHEN EXISTS(
SELECT 1 FROM BBB_EventProjectFavorites f
WHERE  m.EventMediaID = f.EventMediaID AND f.Email = @Email
) THEN 1 ELSE 0 END
FROM BBB_EventProjectMedia m
WHERE (m.EventMediaID = @EventMediaID OR @EventMediaID IS NULL) AND (m.EventGalleryID = @EventGalleryID OR @EventGalleryID IS NULL) AND (m.OrigMediaName = @OrigMediaName OR @OrigMediaName IS NULL) AND m.EventProjectID = @EventProjectID
ORDER BY m.MediaOrder ASC, m.EventMediaID ASC
[+][-]03/24/09 06:51 AM, ID: 23968136Accepted Solution

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About this solution

Zones: SQL Server 2005, SQL Query Syntax
Tags: ms sql slow query
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Solution Provided By: luani
Participating Experts: 2
Solution Grade: A
 
[+][-]03/24/09 06:59 AM, ID: 23968216Author Comment

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[+][-]03/24/09 07:38 AM, ID: 23968659Expert Comment

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[+][-]04/06/09 02:10 PM, ID: 24081752Author Comment

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