How to fix the Oracle error RMAN-06745: skipping datafile copy string; already backed up string time(s)?

In this post, you’ll learn more about the Oracle ErrorRMAN-06745: skipping datafile copy string; already backed up string time(s) with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-06745: skipping datafile copy string; already backed up string time(s)

Reason for the Error RMAN-06745: skipping datafile copy string; already backed up string time(s)

The indicated datafile copy was not included in the backup set because it was already backed up on the device requested.

How to fix the Error RMAN-06745: skipping datafile copy string; already backed up string time(s) ?

You can fix this error in Oracle by following the below steps

Use FORCE option to override backup optimization.