Posted by Erland Sommarskog on 10/25/07 21:39

DBMonitor (spamawayau@yahoo.com.au) writes:
> Both query plans use indexes on for both the tables though. The plans
> are almost identical.

"Almost". Apparently, there is a subtle, but important difference.

Would it be posible for you to post the query plans? If you are on SQL 2005
you can save the graphical execution plan in a file and post that in an
attachment. (Or put it on a web site with a link to it.)


--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx

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