How to fix the Oracle error ORA-42000: invalid online redefinition column mapping for table “string”.”string”?

In this post, you’ll learn more about the Oracle ErrorORA-42000: invalid online redefinition column mapping for table “string”.”string” with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-42000: invalid online redefinition column mapping for table “string”.”string”

Reason for the Error ORA-42000: invalid online redefinition column mapping for table “string”.”string”

An attempt was made to change the logical structure of a materialized view log, queue table, or a partition by specifying a non-NULL column mapping during online redefinition.

How to fix the Error ORA-42000: invalid online redefinition column mapping for table “string”.”string” ?

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

Pass a NULL column mapping parameter.