How to fix the Oracle error ORA-01126: database must be mounted in this instance and not open in any instance?

In this post, you’ll learn more about the Oracle ErrorORA-01126: database must be mounted in this instance and not open in any instance with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01126: database must be mounted in this instance and not open in any instance

Reason for the Error ORA-01126: database must be mounted in this instance and not open in any instance

Obvious

How to fix the Error ORA-01126: database must be mounted in this instance and not open in any instance ?

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

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