Re: Why increase in UNDO after truncate?

Space allocation is still transactional, so that could be a contributor.

Try "truncate ... reuse storage" this will not de-allocate the
extents, but still lower the high water mark.

--
Christo Kutrovsky
Senior Database/System Administrator
The Pythian Group - www.pythian.com
I blog at http://www.pythian.com/blogs/


On 10/16/06, J. Dex <cemail_219@xxxxxxxxxxx> wrote:
This is probably a stupid question but I have a 9207 database.  In order to
do a refresh, I truncate all the tables, disable sequences, foreign keys,
etc.  Since I truncate all the tables, etc., I don't understand why when I
run an import it dramatically increases the size of the UNDO tablespace?
What is it increasing UNDO?   Is there any way around it?

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Christo Kutrovsky
Senior Database/System Administrator
The Pythian Group - www.pythian.com
I blog at http://www.pythian.com/blogs/
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