Learn the cause and how to resolve the ORA-00201 error message in Oracle.
When you encounter an ORA-00201 error, the following error message will appear:
The control file was created by a version of Oracle that is different than the version of Oracle that you are currently running.
The option(s) to resolve this Oracle error are:
Restart Oracle with a version of Oracle that is the same as the control file.
Create a new control file using the CREATE CONTROLFILE command.