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Help on Discard

 
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Veera333
Beginner


Joined: 16 Jul 2010
Posts: 7
Topics: 5
PostPosted: Wed Aug 11, 2010 1:53 am    Post subject: Help on Discard Reply with quote
Hi,

Can i use joins in DISCARD statement.

For example DISCARD FROM TABLE A
WHEN (SELECT 1 FROM TABLE B
WHERE A.COLUMN1 = B.COLUMN1)

Thanks in advance.


Thanks,
Veera
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12376
Topics: 75
Location: San Jose
PostPosted: Wed Aug 11, 2010 9:29 am    Post subject: Reply with quote
Veera333,

If your intention is to delete the matching rows from table A then use the following sql (untested)


Code:

DELETE                                         
  FROM TABLEA X                             
 WHERE COLUMN1 IN (SELECT COLUMN1               
                     FROM TABLEB Y           
                    WHERE X.COLUMN1 = Y.COLUMN1)
  ;                                   


Kolusu
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