How to fix the Oracle error RMAN-06018: duplicate operand specified in backup specification: string?

In this post, you’ll learn more about the Oracle ErrorRMAN-06018: duplicate operand specified in backup specification: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-06018: duplicate operand specified in backup specification: string

Reason for the Error RMAN-06018: duplicate operand specified in backup specification: string

A backup specification operand appears more than once in a backup specification.

How to fix the Error RMAN-06018: duplicate operand specified in backup specification: string ?

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

Delete the duplicate operand.