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Re: Cardinality Hint?

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Wed, 19 Feb 2003 00:28:40 -0800
Message-ID: <F001.005510A8.20030219002840@fatcity.com>

/*+ cardinality(t,N) */
where t is a table alias and N is a number instructs the optimizer to use N as the
computed cardinality of table t without
going to the trouble of checking.

Regards

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

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-----Original Message-----
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Date: 18 February 2003 22:30

>Anyone know anything about a /*+ CARDINALITY */ hint? I noticed it
while
>extracting some MView fast refresh SQL. I can't seem to find anything
>documented about it..... any one have any info they want to share?
>
>Robert
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.net
>--
>Author: Freeman Robert - IL
> INET: FREEMANR_at_tusc.com
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Jonathan Lewis
  INET: jonathan_at_jlcomp.demon.co.uk

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Received on Wed Feb 19 2003 - 02:28:40 CST

Original text of this message

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