How to fix the Oracle error ORA-25404: lost instance?

In this post, you’ll learn more about the Oracle ErrorORA-25404: lost instance with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-25404: lost instance

Reason for the Error ORA-25404: lost instance

The primary instance has died.

How to fix the Error ORA-25404: lost instance ?

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

This is an internally used error message and should not be seen by the user.

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