Why would you want to shrink a rollback segment?

> -----Original Message-----
> From: Glenn Travis [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 26, 2002 2:38 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Users reading from rollback segments
> 
> 
> Is there a way to tell if anyone is reading from the rollback 
> segments?  
> 
> I would like to manually issue 'alter rollback segment XXX 
> shrink;', but do not want to do so if there are users reading 
> read consistent data from the rollback space (thus giving 
> them the ORA-01555 error). 
> 
> Is there a way to check if the rollback segment is in use first?
> 
> Can I try to take it offline?  Will it fail if there is 
> someone reading from it?
> 
> 
> 
> -- 
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> -- 
> Author: Glenn Travis
>   INET: [EMAIL PROTECTED]
> 
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Gogala, Mladen
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