How to fix the Oracle error XOQ-02520: The mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view must be the lowest hierarchy level on all hierarchies in the dimension.?

In this post, you’ll learn more about the Oracle ErrorXOQ-02520: The mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view must be the lowest hierarchy level on all hierarchies in the dimension. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

XOQ-02520: The mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view must be the lowest hierarchy level on all hierarchies in the dimension.

Reason for the Error XOQ-02520: The mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view must be the lowest hierarchy level on all hierarchies in the dimension.

Cause: “The mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view was not the lowest hierarchy level on a hierarchy in the dimension.”

How to fix the Error XOQ-02520: The mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view must be the lowest hierarchy level on all hierarchies in the dimension. ?

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

Action: “Change the mapped dimension in the cube dimensionality map of a query-rewrite-enabled cube materialized view to a hierarchy level or a dimension level that is the lowest hierarchy level on all hierarchies in the dimension.”