How to fix the Oracle error ORA-24327: need explicit attach before authenticating a user?

In this post, you’ll learn more about the Oracle ErrorORA-24327: need explicit attach before authenticating a user with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-24327: need explicit attach before authenticating a user

Reason for the Error ORA-24327: need explicit attach before authenticating a user

A server context must be initialized before creating a session.

How to fix the Error ORA-24327: need explicit attach before authenticating a user ?

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

Create and initialize a server handle.