The scenario you describe is not consistent with manual undo. Was the database
created/started with automatic undo and you have switched to manual?
[EMAIL PROTECTED] wrote:
>
> I use manual managed undo tablespace but there are some system named rollback
> segments on that
> tablespace ( I did not created them ) and they can not be dropped.
> What are they , how can I drop them.
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> Please see the official ORACLE-L FAQ: http://www.orafaq.net
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> Author: <[EMAIL PROTECTED]
> INET: [EMAIL PROTECTED]
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