RE: strange CBO decision

From: Mercadante, Thomas F <thomas.mercadante_at_labor.state.ny.us>
Date: Tue, 2 Mar 2004 08:31:30 -0500
Message-ID: <DE8A21F8F1D0254EA4A9214D52AB2FEDAD5962@exchsen0a1ma>

Jonathan,

I learnt something new today! I just tried it and, of course, you are correct!

Thanks!

Tom Mercadante
Oracle Certified Professional

-----Original Message-----
From: Jonathan Lewis [mailto:jonathan_at_jlcomp.demon.co.uk] Sent: Monday, March 01, 2004 4:08 PM
To: oracle-l_at_freelists.org
Subject: Re: strange CBO decision

No. It's not a column/literal thing, it's a number/varchar thing.

A clause like:

... where numeric_column = character_literal

will convert the literal to match the column type.

Regards

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

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

March 2004 Hotsos Symposium - The Burden of Proof   Dynamic Sampling - an investigation
March 2004 Charlotte OUG (www.cltoug.org) CBO Tutorial April 2004 Iceland
June 2004 UK - Optimising Oracle Seminar

• Original Message ----- From: "Mercadante, Thomas F" <thomas.mercadante_at_labor.state.ny.us>
  >
  > Remember, Oracle will not convert a literal to match a column - it
  converts
  > the column to match the literal. Makes perfect sense.
  >
  

  ---

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

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Received on Tue Mar 02 2004 - 07:28:34 CST