How to fix the Oracle error ORA-41106: invalid argument string: value is null?

In this post, you’ll learn more about the Oracle ErrorORA-41106: invalid argument string: value is null with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-41106: invalid argument string: value is null

Reason for the Error ORA-41106: invalid argument string: value is null

An attempt to read the scan hostname or port failed

How to fix the Error ORA-41106: invalid argument string: value is null ?

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

Verify pcw is running and scan is configured. Run grdcscan read_config to verify or grdcscan set_config host:port to set scan name and port.