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Message Posted: Tue, 28 Aug 2007 @ 11:36:26 GMT


     
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Subj:   Re: Rank in Teradata
 
From:   D silva, Joseph Vinish

  I have a report with two columns - Id and Volume.  


  Now I want to rank Top 5 Id based on the Volume. I know it is easy to do. But the problem is I want to Rank them before pulling all the data in the report.  


Are you looking for something like QUALIFY ?

     SELECT ID, VOLUME, RANK() OVER(ORDER BY VOLUME) RNK
     FROM MyTable
     QUALIFY  RNK <= 5
     ;

          ID   VOLUME   RNK
          500777055   0.01   1
          700009148   0.02   2
          500854807   0.03   3
          131734   0.04   4
          503282204   0.04   4

Joseph D'silva



     
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