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Message Posted: Fri, 04 Feb 2011 @ 08:57:50 GMT

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Subj:   Re: Avoid distinct
From:   Minakshi Swami


You can do it with partition clause, here is the syntax

     sel c1,sum(c2),count(c3),count(c4) over(partition by c1 order by 1)
       from vt1 group by c1,c4;

The output will be same as your sql

     sel c1,sum(c2),count(c3),count(distinct c4)  from vt1 group by c1

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