How to fix the Oracle error ORA-27086: unable to lock file – already in use?

In this post, you’ll learn more about the Oracle ErrorORA-27086: unable to lock file – already in use with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-27086: unable to lock file – already in use

Reason for the Error ORA-27086: unable to lock file – already in use

the file is locked by another process, indicating that it is currently in use by a database instance.

How to fix the Error ORA-27086: unable to lock file – already in use ?

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

determine which database instance legitimately owns this file.