In this post, you’ll learn more about the Oracle ErrorRMAN-20034: resync not needed with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
RMAN-20034: resync not needed
Reason for the Error RMAN-20034: resync not needed
the control file has not changed since the previous resync
How to fix the Error RMAN-20034: resync not needed ?
You can fix this error in Oracle by following the below steps
nothing since the recovery catalog is in sync