Re: How to clear UNDOTBS
Date: Mon, 18 Jan 2010 07:14:51 -0800 (PST)
I understand the frustration with an undo tablespace that is growing out of control. When I see this and temp occurring and it's not due to number of transactions using these "work areas" of Oracle efficiently, I get a little obsessive, as it is a quick indicator when a database is working hard vs. smart in my book.
To save some typing, I'll point you towards OracleNerd with a shameless plug of the site, where I wrote a guest post on Undo and it might answer some questions for you- http://www.oraclenerd.com/2009/11/undo-brain-damage.html
It has a number of scripts that may help you out. Afterwards, you might find that you simply want to redirect your question to finding out what is using all the undo- is it actually correct use of the undo or is something just not right in the database.
Hope this helps,
"Go away before I replace you with a very small and efficient shell script..."
- On Mon, 1/18/10, Eriovaldo Andrietta <ecandrietta_at_gmail.com> wrote:
From: Eriovaldo Andrietta <ecandrietta_at_gmail.com>
Subject: How to clear UNDOTBS
To: "ORACLE-L" <oracle-l_at_freelists.org> Date: Monday, January 18, 2010, 6:28 AM
I have an UNDOTBS that is growin up.
How can I do to clear it ?
I don´t need data that is there saved.
I can restart writting the UNDOTBS again.