How to fix the Oracle error ORA-16455: switchover to standby failed?

In this post, you’ll learn more about the Oracle ErrorORA-16455: switchover to standby failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16455: switchover to standby failed

Reason for the Error ORA-16455: switchover to standby failed

An attempt to switchover to a physical standby database failed.

How to fix the Error ORA-16455: switchover to standby failed ?

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

Check alert log for more details. Issue the SHUTDOWN ABORT command on the database before issuing another ALTER DATABASE COMMIT TO SWITCHOVER TO STANDBY command.