ORA-11420
feature_name requires the COMPATIBLE initialization parameter to be version_string or higher.
- feature_name: The formal name of the Oracle Data Guard PDB feature.
- version_string: The current value of the COMPATIBLE initialization parameter.
Cause
The target multitenant container database (CDB) does not have a high enough setting for the COMPATIBLE initialization parameter to support the use of the Oracle Data Guard pluggable database (PDB) feature.
Action
Either choose another CDB to host the Oracle Data Guard PDB or increase the setting of the COMPATIBLE initialization parameter in the current host CDB.