Oracle Error RMAN-20109: remote database has different database ID

Oracle Error Message

RMAN-20109: remote database has different database ID

Reason for the Error

Command RESYNC CATALOG FROM DB_UNIQUE_NAME was executed and the database ID of the remote database was different than the connected target database.

Solution

The remote database should have the same database ID as the database connected as the target database. Fix the connect identifier for the remote database and retry the command.