How to fix the Oracle error ORA-01566: file specified more than once in ALTER DATABASE?

In this post, you’ll learn more about the Oracle ErrorORA-01566: file specified more than once in ALTER DATABASE with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01566: file specified more than once in ALTER DATABASE

Reason for the Error ORA-01566: file specified more than once in ALTER DATABASE

The list of files supplied to the command contained at least one duplicate.

How to fix the Error ORA-01566: file specified more than once in ALTER DATABASE ?

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

Remove the duplicate file specification and retry.