How to fix the Oracle error ORA-16456: switchover to standby in progress or completed?

In this post, you’ll learn more about the Oracle ErrorORA-16456: switchover to standby in progress or completed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16456: switchover to standby in progress or completed

Reason for the Error ORA-16456: switchover to standby in progress or completed

The requested operation was not allowed because a switchover to standby operation was either in progress or had completed.

How to fix the Error ORA-16456: switchover to standby in progress or completed ?

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

Issue the SHUTDOWN ABORT command on the database after switchover operation completes.