Oracle Error Message
RMAN-20231: ambiguous datafile copy name
Reason for the Error
more than one control file copy in the recovery catalog match the specified name.
Solution
use the datafile copy key to uniquely specify the datafile copy
RMAN-20231: ambiguous datafile copy name
more than one control file copy in the recovery catalog match the specified name.
use the datafile copy key to uniquely specify the datafile copy