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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Re[2]: undo tablespace
You're correct in saying that your undo blocks are protected by your redo
files.
What type of operation are you performing on your table? I ask because only
a small subset of commands support the NOLOGGING feature; the remainder will
generate redo as usual.
If you're not using a syntax that supports NOLOGGING maybe you could adapt
your job to adopt one.
Alternatively you may find that you just need to optimise your redo log
placement in order to handle the load.
Regards,
Mike Hately
-----Original Message-----
Sent: 29 January 2003 14:10
To: Multiple recipients of list ORACLE-L
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: Hately, Mike (NESL-IT)
INET: Mike.Hately_at_npowernorthern.com
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