How to fix the Oracle error ORA-01233: file string is read only – cannot recover using backup control file?

In this post, you’ll learn more about the Oracle ErrorORA-01233: file string is read only – cannot recover using backup control file with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01233: file string is read only – cannot recover using backup control file

Reason for the Error ORA-01233: file string is read only – cannot recover using backup control file

An attempt to do media recovery using a backup control file found that one of the files is marked read only. Read only files do not normally need to be recovered, but recovery with a backup control file must recover all online files.

How to fix the Error ORA-01233: file string is read only – cannot recover using backup control file ?

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

If the file really is read only, take it offline before the recovery, and bring the read only tablespace online after the database is open. If the file does need recovery use a control file from the time the file was read-write. If the correct control file is not available, use CREATE CONTROLFILE to make one.