RE: Re: help with estimate row count from asktom

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Tue, 30 Dec 2003 10:29:25 -0800
Message-ID: <F001.005DB46D.20031230102925@fatcity.com>

Don't be afraid to access v$ views, just beware of the bug that throws a ora-600 when selecting 'filter_predicates' and 'access_predicates' under 9202. As a workaround, don't select those two columns. If I were you, I'd make sure that users are *very* clear that the number you are going to get is an 'ESTIMATE' only.

We run with statistics_level=ALL, haven't seen any noticeable difference, YMMV. Raj

Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !

-----Original Message-----
Sent: Tuesday, December 30, 2003 1:19 PM To: Multiple recipients of list ORACLE-L

im concerned about hitting the v$views in production. we have 30,000 users. its either that or do counts. Its a requirement from the users. not sure what to do. doesnt tom kyte do this on asktom?

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Author: Jamadagni, Rajendra
INET: Rajendra.Jamadagni_at_espn.com

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