How to fix the Oracle error ORA-40392: PMML regression equation references an undefined field: string?

In this post, you’ll learn more about the Oracle ErrorORA-40392: PMML regression equation references an undefined field: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-40392: PMML regression equation references an undefined field: string

Reason for the Error ORA-40392: PMML regression equation references an undefined field: string

Regression equation did not reference defined fields.

How to fix the Error ORA-40392: PMML regression equation references an undefined field: string ?

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

Regression equation may only reference defined fields. Make sure all fields are defined.