Assume that you maintain a production databases of the following releases:
You want to record RMAN repository data about these databases in a single recovery catalog database. According to Table B-1, you can use a single 9.2.0 recovery catalog database with a 10.2.0 catalog schema for all target databases.
The solution for this combination of target databases is to do the following:
Use a single 9.2.0 catalog database.
Use a single 10.2.0 catalog schema for all databases.
Ensure that the version of the RMAN client used to back up each target database meets the requirements specified in Table B-1.