Re: Re: how to get oracle to ignore an index

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Fri, 6 Feb 2004 20:50:21 -0000
Message-ID: <00b701c3ecf2$d607ebf0$6702a8c0@Primary>

First check -

Are either of the columns in the index declared to be NOT NULL ?

Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

The educated person is not the person who can answer the questions, but the person who can question the answers -- T. Schick Jr

Next public appearances:
March 2004 Hotsos Symposium - The Burden of Proof March 2004 Charlotte NC OUG - CBO Tutorial April 2004 Iceland

One-day tutorials:
http://www.jlcomp.demon.co.uk/tutorial.html

Three-day seminar:
see http://www.jlcomp.demon.co.uk/seminar.html
____UK___February
____UK___June

The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

Original Message ----- From: "Jesse, Rich" <Rich.Jesse_at_qtiworld.com> To: <oracle-l_at_freelists.org> Sent: Friday, February 06, 2004 8:13 PM Subject: RE: Re: how to get oracle to ignore an index

Perhaps that is one case, but I just tried this:

SELECT /*+ index(pm partmaster_partno) */ * FROM partmaster pm;

...where "partmaster" is an 8400 block table, and "partmaster_partno" is a 2-segment unique index, and Oracle still correctly chooses the FTS, even though I hinted to use an index.

Rich

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

To unsubscribe send email to: oracle-l-request_at_freelists.org put 'unsubscribe' in the subject line.

--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------

Received on Fri Feb 06 2004 - 14:50:21 CST