How to fix the Oracle error ORA-16445: Database has to be mounted and cannot be open?

In this post, you’ll learn more about the Oracle ErrorORA-16445: Database has to be mounted and cannot be open with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16445: Database has to be mounted and cannot be open

Reason for the Error ORA-16445: Database has to be mounted and cannot be open

ALTER SYSTEM FLUSH REDO TO STANDBY required that the database be mounted, but not opened.

How to fix the Error ORA-16445: Database has to be mounted and cannot be open ?

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

Mount the database and then reissue the operation.