RE: Dead slow count(*)

From: Robson, Peter <pgro_at_bgs.ac.uk>
Date: Tue, 10 Feb 2004 10:36:26 -0000
Message-ID: <BF81CBFBEFD304489D53FFD44BCAB707238DF2@mhnts2.nerc-murchison.ac.uk>

Are you, by any chance, missing a primary key on this table?

peter
edinburgh

>
> >From: Jordi Adame V <jordi_at_inffinix.com>
> >Reply-To: oracle-l_at_freelists.org
> >To: Oracle-L_at_freelists.org
> >Subject: Dead slow count(*)
> >Date: Thu, 29 Jan 2004 17:54:46 -0600
> >
> >Hi!
> >
> >I have this table with ~4,000,000 entries
> >
> >When i do a SELECT COUNT(*) FROM TABLE_NAME
> >
> >it takes 4 hours to give me the result, this is way too much
> >
> >Im running Oracle 9.2.0.4.0 on RedHat AS 3
> >
> >These are my first experiences with Oracle, so I have no
> clue how to fix
> >this
> >query time... Any help would be nice
> >
> >regards
> >
> >Jordi
> >
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Received on Tue Feb 10 2004 - 04:36:26 CST