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Long running SQL Problem?

From: Denham Eva <EvaD_at_TFMC.co.za>
Date: Wed, 27 Mar 2002 00:53:20 -0800
Message-ID: <F001.004346FF.20020327005320@fatcity.com>


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: Denham Eva
  INET: EvaD_at_TFMC.co.za

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