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RE: RE: Dead slow count(*)

From: <ryan.gaffuri_at_cox.net>
Date: Mon, 9 Feb 2004 17:21:35 -0500
Message-Id: <20040209222135.BBAY13731.lakemtao01.cox.net@smtp.east.cox.net>


here is an old one by Gaja Vaidyanatha. He is a co-auther of perf tuning 101.

http://www.quest-pipelines.com/newsletter-v3/0302_F.htm

I think Niall Litchfield wrote a newer one?
>
> From: Nikhil Khimani <nkhimani_at_marketaxess.com>
> Date: 2004/02/09 Mon PM 05:14:58 EST
> To: "'oracle-l_at_freelists.org'" <oracle-l_at_freelists.org>
> Subject: RE: RE: Dead slow count(*)
>
> L&G,
>
> Is there a URL for "Known Oracle Myth?"
> Sometimes, it's difficult to argue with an individual when he/she feeds you
> the bs with a passion and by the time you learned the myth, it's too late to
> bark back :-(
>
> Thanks,
>
> Nikhil Khimani
> Market Axess
> 140 Broadway, 42nd Floor
> New York, NY 10005
>
> (212) 813-6230 (W)
> nkhimani_at_marketaxess.com
>
>
> -----Original Message-----
> From: ryan.gaffuri_at_cox.net [mailto:ryan.gaffuri_at_cox.net]
> Sent: Monday, February 09, 2004 4:59 PM
> To: oracle-l_at_freelists.org
> Subject: Re: RE: Dead slow count(*)
>
>
> number of extents does not matter in a query. common myth. I think there is
> a paper from about 5 years ago with common myths in it and that was one of
> them. Could be wrong.
>
> high water only matters if your not using an index.
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Received on Mon Feb 09 2004 - 16:21:35 CST

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