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Do you ever have days where you dont want to think ?

From: Johnson, Michael <Michael.Johnson_at_oln-afmc.af.mil>
Date: Fri, 17 May 2002 13:23:22 -0800
Message-ID: <F001.00463BB0.20020517132322@fatcity.com>


I just just wanna go lie on a beach naked on some remote island far far away and not think of anything for a month.

Here is the issue.....

I have a query that looks like this ...

select a.f1, a.f2, a.f3, a.f4 from table1 a where a.f1 not in
( select b.n1 from b );

there is a primary key index on b.n1
there is a concatenated primary key index on a.f1,a.f2,a.f3 there is a non-unique index on a.f1

the query shows that the index is being used on table b, but no indexes are being used on table a.

Mike
--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Johnson, Michael
  INET: Michael.Johnson_at_oln-afmc.af.mil

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