How to fix the Oracle error ORA-23480: Column string is not a top-level column of “string”.”string”.?

In this post, you’ll learn more about the Oracle ErrorORA-23480: Column string is not a top-level column of “string”.”string”. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-23480: Column string is not a top-level column of “string”.”string”.

Reason for the Error ORA-23480: Column string is not a top-level column of “string”.”string”.

The column is either not a top-level column or is not present in the table or materialized view.

How to fix the Error ORA-23480: Column string is not a top-level column of “string”.”string”. ?

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

Ensure only valid top-level columns are used.