Row Number for group by ?

Posted by Damien Joe on Stack Overflow See other posts from Stack Overflow or by Damien Joe
Published on 2011-01-17T06:50:41Z Indexed on 2011/01/17 6:53 UTC
Read the original article Hit count: 542

Filed under:

sql

|

query

|

db2

|

iseries

I have table structure like

Category EmpName
   1      Harry
   1      John
   1      Ford 
   2      James
   2      Mark  
   2      Shane 
   3      Oliver 
   3       Ted

I want results like

Category EmpName RowNumber
   1      Harry      1
   1      John       2 
   1      Ford       3
   2      James      1
   2      Mark       2
   2      Shane      3
   3      Oliver     1
   3      Ted        2

I am using db2 and row_number() is not working for different groups of records.

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