Oracle-L: Re[2]: undo tablespace

From: Breno A. K. Magnago <breno_at_mercantilsoares.com.br>
Date: Wed, 29 Jan 2003 06:09:35 -0800
Message-ID: <F001.0053D307.20030129060935@fatcity.com>

Mike,

I asked it because I have a problem.
Any insert data in UNDO tablespace generate insert in REDO Files. Is is correct ?

When I execute a high procedure, many inserts in UNDO tablespace ocurres, so many inserts in REDO´s are genereate. I want to avoid this REDO´s generation.
My tables and indexes are in NOLOGGING, but I high value of REDO are generate (100 MB each 20 minutes). It is desnecessary.

Oracle 9i / NT

Breno A. K. Magnago                            mailto:breno_at_mercantilsoares.com.br

Mercantil de Alimentos Soares

Wednesday, January 29, 2003, 10:29:15 AM, you wrote:

HMNI> Breno,
HMNI> There's no way to do this because it's the central pillar of Oracle's read
HMNI> consistency mechanism.
HMNI> It's possible to minimise or suppress redo but undo is out of your control.

HMNI> regards,
HMNI> Mike Hately

HMNI> -----Original Message-----
HMNI> Sent: 29 January 2003 11:39
HMNI> To: Multiple recipients of list ORACLE-L


HMNI> I have a high procedure (many INSERT's and UPDATE´s).
HMNI> This procedure generate insert's in UNDO TableSpace for rollback.

HMNI> I want to know if exists any way for don´t generate insert´s in UNDO HMNI> Tablespace.

HMNI> Oracle 9i / NT

HMNI> Thanks.

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Author: Breno A. K. Magnago
INET: breno_at_mercantilsoares.com.br

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