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'Group By' substringed Column

 
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tcurrier
Intermediate


Joined: 10 Feb 2006
Posts: 188
Topics: 68
PostPosted: Fri Feb 10, 2006 7:43 pm    Post subject: 'Group By' substringed Column Reply with quote
Is there a way to do a 'Group By' using a substringed field ?

Code:
SELECT SUBSTR(MY_FIELD,1,4),
        COUNT(*)                         
  FROM MYDATABASE_MYTABLE
  WHERE  STATE  = '20'           
  AND     STATUS = '1'             
  AND     REASON = 'A'
GROUP BY SUBSTR(MY_FIELD,1,4)   ????? 


Thanks for any help !
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose
PostPosted: Sat Feb 11, 2006 8:29 am    Post subject: Reply with quote
tcurrier,

Try this

Code:

SELECT Z.MY_COL
      ,COUNT(*)                         
  FROM (SELECT SUBSTR(MY_FIELD,1,4) MY_COL
          FROM MYDATABASE_MYTABLE
         WHERE STATE  = '20'           
           AND STATUS = '1'             
           AND REASON = 'A') Z
 GROUP BY Z.MY_COL
  ;


Hope this helps...

Cheers

Kolusu
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tcurrier
Intermediate


Joined: 10 Feb 2006
Posts: 188
Topics: 68
PostPosted: Sat Feb 11, 2006 12:05 pm    Post subject: Reply with quote
It works perfect! Thank you very much !
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