How to fix the Oracle error ORA-12647: Authentication required?

In this post, you’ll learn more about the Oracle ErrorORA-12647: Authentication required with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12647: Authentication required

Reason for the Error ORA-12647: Authentication required

The parameter that controls whether authentication is required was set to true, but the executable does not have an authentication service linked in.

How to fix the Error ORA-12647: Authentication required ?

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

Either re-link the executable with an authentication service adapter or disable the parameter.