Optimize "not in" query

Posted by Vasu on Stack Overflow See other posts from Stack Overflow or by Vasu
Published on 2010-06-07T05:28:37Z Indexed on 2010/06/07 5:32 UTC
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sql

|

query

Please help optimize this query:

SELECT ts.SiteId, COUNT(ts.SiteId) AS Count 
FROM ts 
WHERE ts.SiteId not in 
   (SELECT ts.SiteId FROM ts WHERE ts.uniqueid = 'xxx') 
GROUP BY ts.SiteId ORDER BY Count DESC

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