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Delete from one table based on 2 tables

 
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Huzefa

New User


Joined: 05 Dec 2006
Posts: 85
Location: Bangalore

PostPosted: Thu Aug 12, 2010 2:15 am    Post subject: Delete from one table based on 2 tables
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Hi,
Is there a way we can delete from 1 table joining 2 tables.

I know to delete based on joining 1 table as below

Code:
DELETE TABLE1
FROM TABLE1 A
JOIN TABLE 2 B
ON A.COLUMN1 = B.COLUMN1
AND A.COLUMN2 = B.COLUMN2


Now if I want to delete from TABLE1 joining TABLE2 and TABLE3 how do I achieve.

Thanks in advance
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dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Thu Aug 12, 2010 3:53 am    Post subject:
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Hello,

Needs clarification.

Show some "starting" rows from the tables and what should remain after your process is executed.
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sushanth bobby

Senior Member


Joined: 29 Jul 2008
Posts: 1013
Location: India

PostPosted: Thu Aug 12, 2010 8:23 am    Post subject:
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Huzefa,

You cannot do joins in DELETE statement in DB2.

Try this,
Code:
delete from table1 a
where exists
 (
  select 1 from table2 b
  where a.column1 = b.column1 and a.column2 = b.column2
 )
;


Thanks,
Sushanth
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