Re: trigger and LogMiner

From: Pete Finnigan <oracle_list_at_peterfinnigan.demon.co.uk>
Date: Wed, 09 Jul 2003 02:28:41 -0700
Message-ID: <F001.005C40D8.20030709021927@fatcity.com>

Hi Robin,

LogMiner is a good tool for forensics, after the fact type work i.e to find out when your junior dba dropped that table. It shouldn't be used to do run of the mill daily work. It has a few deficiencies that are hard to work around:

o - log miner user PGA memory so cannot be used in MTS environment
o - it doesn't fully support objects
o - doesn't support chained or migrated rows (fixed in 9i, not sure 

    which release.)
o - doesn't support analysis of clustered tables or indexes or IOT's o - selects are not recorded in redo prior to 9i (again not sure which

    release).

creating a trigger and a history table is far far more sensible and robust.

hth

kind regards

Pete
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Pete Finnigan
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Web site: http://www.petefinnigan.com - Oracle security audit specialists Book:Oracle security step-by-step Guide - see http://store.sans.org for details.

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Author: Pete Finnigan
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