Rollback segs

All,  

Is there any method of tieing an individual user to a rollback segment to the exception of all others. I know about the set transaction thing but what I want is to avoid other users on the db using the one created for a specific task.  

Regards      

Lee Robertson
Acxiom
Tel: 0191 525 7344
Fax: 0191 525 7007
Email: lerobe_at_acxiom.co.uk  

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