How to fix the Oracle error ORA-38759: Database must be mounted by only one instance and not open.?

In this post, you’ll learn more about the Oracle ErrorORA-38759: Database must be mounted by only one instance and not open. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-38759: Database must be mounted by only one instance and not open.

Reason for the Error ORA-38759: Database must be mounted by only one instance and not open.

An attempt to turn on or off Flashback Database logging was made when the database was open or mounted by more than one instance.

How to fix the Error ORA-38759: Database must be mounted by only one instance and not open. ?

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

Mount the database in only one instance and retry the command.