How to fix the Oracle error ORA-09939: Restoration of signal handlers failed.?

In this post, you’ll learn more about the Oracle ErrorORA-09939: Restoration of signal handlers failed. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-09939: Restoration of signal handlers failed.

Reason for the Error ORA-09939: Restoration of signal handlers failed.

ORACLE was unable to restore the previous values of selected signal handlers.

How to fix the Error ORA-09939: Restoration of signal handlers failed. ?

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

This is an internal error. Contact ORACLE support.