How to fix the Oracle error ORA-31145: Duplicate listener, string, found in resource configuration?

In this post, you’ll learn more about the Oracle ErrorORA-31145: Duplicate listener, string, found in resource configuration with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-31145: Duplicate listener, string, found in resource configuration

Reason for the Error ORA-31145: Duplicate listener, string, found in resource configuration

Duplicate listener source was found in resource configuration.

How to fix the Error ORA-31145: Duplicate listener, string, found in resource configuration ?

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

Remove duplicates and resubmit statement.