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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Long running SQL Problem?
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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