Good day Experts
We are in the process of upgrading our databases from 184.108.40.206 to 10.2.0.4. We are planning to upgrde all our databases first, and then upgrade RMAN catalog last.
Can RMAN executable schema, version, and catalog are in 220.127.116.11.backup target database 10.2.0.4? If so, is there any drawback and/or restriction doing this way?