How to fix the Oracle error NNO-00304: listen address string length string exceeds maximum of string?

In this post, you’ll learn more about the Oracle ErrorNNO-00304: listen address string length string exceeds maximum of string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNO-00304: listen address string length string exceeds maximum of string

Reason for the Error NNO-00304: listen address string length string exceeds maximum of string

Cause: the length of one of the server’s listen addresses exceeds an internal limit.

How to fix the Error NNO-00304: listen address string length string exceeds maximum of string ?

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

Action: An internal error not normally visible to the user. Contact Worldwide Customer Support.