The Oracle (tm) Users' Co-Operative FAQ

When are rollback segments supposed to shrink ?


Author's name: Jonathan Lewis

Author's Email: Jonathan@jlcomp.demon.co.uk

Date written: 2nd Nov 2001

Oracle version(s): n/a

The purpose of the OPTIMAL option is to make sure that rollback segments shrink back to a known size automatically - but it doesn't seem to work properly on your system. Has something gone wrong.

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This question is addressed by the following documents:

Author Title/URL Suggested by Referee's comments
Howard Rogers When do rollback segments shrink ? Jonathan Lewis A short pdf file with an intelligent discussion of the issues. You will need Adobe Acrobat to read this document.

NOTE - The referenced site was closed down by Oracle Australia. in May 2002. This link has been maintained in case Howards gets permission to re-open the site.

       

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Further reading:


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