RMAN merging catalogs

We have a 10G and 9i RMAN catalog.  

In a perfect world, it might be nice if one could migrate the catalog to the control file, then register on the 10G catalog and migrate the control file to the 10G catalog.  

There doesn't seem to be much on just migrating one server at a time from one catalog to another.  

You could always export/import if it was the whole thing, but these are existing catalogs, and one at a time, where it's convenient, no firewall problems, it would be nice to take the 9i stuff to 10g.  

Is there a document out there for the "one at a time" or a "few selected" from one to the other?  

Michael Kline
Richmond, Va. 23227
BlackBerry: 804.517.7443
michael.kline_at_suntrust.com <mailto:michael.kline_at_suntrust.com>         

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