RE: Please a parameter to disable undo, like _disable_logging

Juan,

If you just want to create table from DBA_OBJECTS, use nologging, as Connor already pointed out.

Mark J. Bobak
Oracle DBA
ProQuest Company
Ann Arbor, MI

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Juan Carlos Reyes Pacheco
Sent: Wednesday, October 06, 2004 10:17 AM To: DGoulet_at_vicr.com; oracle-l_at_freelists.org Subject: RE: Please a parameter to disable undo, like _disable_logging

Hi Dick,
In my home computer took 2 hour to create a 100,000,000 records from dba_objects, so I t hink is a good idea to=20 find a better way , obviously this is not to use in production database, and
is not to save microseconds.

=20

Juan Carlos Reyes Pacheco
OCP
-------Original Message-------
=20

From: DGoulet_at_vicr.com
Date: 10/06/04 10:05:52
To: jreyes_at_dazasoftware.com; oracle-l_at_freelists.org Subject: RE: Please a parameter to disable undo, like _disable_logging
=20

There are some things like this that I believe should not be done, even in test. The reason is that now you've crippled a significant item for database recovery for the purpose of shaving a couple of microseconds off of the execution time. Problem with that is that when the same application starts to run in production it will run slower than in test & damanagement will want the same performance/crippled database in production. Then when, not if, all hell breaks loose you're the one trying to explain why the database can't be recovered. I personally like having my test environment, not development, in a similar configuration so that all of the background delays play out just like in production.
=20
=20

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA
-----Original Message-----
From: Juan Carlos Reyes Pacheco [mailto:jreyes_at_dazasoftware.com]=3D20 Sent: Tuesday, October 05, 2004 8:23 PM
To: oracle-l_at_freelists.org
Subject: RE: Please a parameter to disable undo, like _disable_logging
=20

thanks
=20

but /*+ append */ too bypasses undo, and if you set _disable_logging you run the same risk, if you have a problem. I think for a test database could be acceptable. For example I'm trying to create a 10 000 000 records in my home for testing purposes, so this will be greatly welcome.
I bet there should be a way.
=20
=3D20

Juan Carlos Reyes Pacheco
OCP

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