No, the new database will have a new DBID, so you will have to register it with the catalog. tnx On Wed, Apr 15, 2009 at 9:29 AM, Jeffrey Beckstrom <JBECKSTROM@xxxxxxxxx> wrote: > I have database's A and B on different servers and using a catalog. If I > want to do a RMAN duplicate of A to B, do I first have to unregister the > original B database from the catalog? > > > Jeffrey Beckstrom > Database Administrator > Greater Cleveland Regional Transit Authority > 1240 W. 6th Street > Cleveland, Ohio 44113 -- //www.freelists.org/webpage/oracle-l