How to fix the Oracle error TNS-01045: string(Not Registered) has string service handler(s)?

In this post, you’ll learn more about the Oracle ErrorTNS-01045: string(Not Registered) has string service handler(s) with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-01045: string(Not Registered) has string service handler(s)

Reason for the Error TNS-01045: string(Not Registered) has string service handler(s)

Cause: Control program status message.

How to fix the Error TNS-01045: string(Not Registered) has string service handler(s) ?

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

Action: None