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Message Posted: Mon, 17 Dec 2012 @ 14:05:53 GMT

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Excellent Dave!!

Your query works perfect however I require this delete script on mload so I proceed with below subquery as I cannot create a volatile table.

     DELETE FROM TABLE
     WHERE cal_dt <
     (
     SELECT MIN(a.cal_dt)
     FROM (
     SELECT TOP 4 cal_dt
     FROM TABLE
     GROUP BY cal_dt
     ORDER BY cal_dt DESC) a );

Above query holds exactly last four weeks of data. Thanks a lot for your help!!

Regards,

John

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