How to fix the Oracle error ORA-01137: data file string is still in the middle of going offline?

In this post, you’ll learn more about the Oracle ErrorORA-01137: data file string is still in the middle of going offline with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01137: data file string is still in the middle of going offline

Reason for the Error ORA-01137: data file string is still in the middle of going offline

It was not possible to get the lock for a file that is offline when attempting to bring it online. The most likely cause is that the lock is still held by the instance that is took it offline.

How to fix the Error ORA-01137: data file string is still in the middle of going offline ?

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

Wait a bit and try to online the file again.