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Need sql query to remove duplicates using UNION ALL clause

884130Jan 17 2012 — edited Jan 17 2012
Hi,

I have a sql query which has UNION clause.But the UNION clause is causing some performance issues.
To overcome that I have used UNION ALL to improve performance but its returning duplicates.

Kindly anyone send a sample SQL query where my primary objective is used to use UNION ALL clause and to consider unique rows (elimating duplicate
ones)

Any help will be needful for me

Thanks and Regards
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Locked on Feb 14 2012
Added on Jan 17 2012
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