How to fix the Oracle error ORA-40227: invalid transformation attribute?

In this post, you’ll learn more about the Oracle ErrorORA-40227: invalid transformation attribute with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-40227: invalid transformation attribute

Reason for the Error ORA-40227: invalid transformation attribute

Transformation list provided to CREATE_MODEL has duplicate or NULL attributes. Case ID or target attribute has attribute_subname that is not NULL. Attribute provided to ALTER_REVERSE_EXPRESSION does not exist in the model.

How to fix the Error ORA-40227: invalid transformation attribute ?

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

Remove NULLs and duplicates and fix case ID and target attributes or provide a valid attribute for a given model.