How to fix the Oracle error ORA-63998: undo tablespace file suffered media failure?

In this post, you’ll learn more about the Oracle ErrorORA-63998: undo tablespace file suffered media failure with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-63998: undo tablespace file suffered media failure

Reason for the Error ORA-63998: undo tablespace file suffered media failure

An undo tablespace file was detected as inaccessible due to media failure.

How to fix the Error ORA-63998: undo tablespace file suffered media failure ?

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

Restore accessibility to the file mentioned in the error stack and restart the instance.