I think you want to remove records of obsolete backup sets from the Recovery Catalog database. If this is not your intent, I apologize for wasting your time.

Look at the script rman1.sh located in

/$ORACLE_HOME/rdbms/demo

You can edit it to fit your needs and then delete all of the old records automatically.

You can also adjust the filesperset parameter to create more (or fewer) backup files. It is useful if you are trying to decrease the file size to stay under your OS limit.

Hope that helps.

[Edited by dknight on 09-18-2001 at 11:11 AM]