Don't just analyze 1 schema, When the optimizer in in CHOOSE-mode, it will
calculate the execution-plan in cost-based.
In all Oracle versions there is a problem with outer-joins and the
Cost-based optimizer. SQL-statements with an outer join in it are faser in
RULE.
Eric Lansu
- Original Message -----
From: "Weerd Kirsten, E.C. de" <Kirsten.deWeerd_at_Oranjewoud.nl>
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
Sent: Thursday, 19 October 2000 16:00
Subject: Analyzed Schema
> Hi all,
>
> Are there situations where it is best to work without an analyzed
> schema, or should all schema's be analyzed an a regular basis ?
>
> Or : What are the pro's and con's of analyzing a schema ???
>
> Greets,
>
> Kirsten
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Weerd Kirsten, E.C. de
> INET: Kirsten.deWeerd_at_Oranjewoud.nl
>
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Received on Thu Oct 19 2000 - 09:16:51 CDT
