How to fix the Oracle error ORA-12333: database (link name string) is not mounted?

In this post, you’ll learn more about the Oracle ErrorORA-12333: database (link name string) is not mounted with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12333: database (link name string) is not mounted

Reason for the Error ORA-12333: database (link name string) is not mounted

You attempted to open a database that has not been mounted.

How to fix the Error ORA-12333: database (link name string) is not mounted ?

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

Mount the database with the ALTER DATABASE MOUNT command, then re-attempt to open the database.