How to fix the Oracle error TNS-01157: Can only listen on number addresses – ignoring string?

In this post, you’ll learn more about the Oracle ErrorTNS-01157: Can only listen on number addresses – ignoring string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-01157: Can only listen on number addresses – ignoring string

Reason for the Error TNS-01157: Can only listen on number addresses – ignoring string

Cause: Too many addresses were given to listen on.

How to fix the Error TNS-01157: Can only listen on number addresses – ignoring string ?

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

Action: Reduce the number of addresses to listen on and use another listener to listen on the remaining addresses.