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RE: Long running SQL Problem?

From: Nicoll, Iain (Calanais) <iain.nicoll_at_calanais.com>
Date: Wed, 27 Mar 2002 03:15:07 -0800
Message-ID: <F001.0043493B.20020327031507@fatcity.com>


Should be better with  

select col1, col2
from table_1
minus
select col3, col4
from table2  

Iain Nicoll  

 -----Original Message-----
Sent: Wednesday, March 27, 2002 8:53 AM
To: Multiple recipients of list ORACLE-L

Hello List

Is there anyone who can give me a solution to this problem. It is a sql that runs forever and I eventually have to kill it, both tables are large 500000 + rows.
Is there perhaps a quicker more effecient way of doing this.

SELECT col1,col2
FROM Table_1
WHERE (col1,col2) NOT IN (SELECT col3,col4 FROM Table_2);

TIA
Denham Eva
Oracle DBA


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Author: Nicoll, Iain (Calanais)
  INET: iain.nicoll_at_calanais.com

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