How to fix the Oracle error XOQ-01421: A hierarchy must contain at least one level.?

In this post, you’ll learn more about the Oracle ErrorXOQ-01421: A hierarchy must contain at least one level. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

XOQ-01421: A hierarchy must contain at least one level.

Reason for the Error XOQ-01421: A hierarchy must contain at least one level.

Cause: An MdmHierarchy was defined without any levels.

How to fix the Error XOQ-01421: A hierarchy must contain at least one level. ?

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

Action: Add a level to the requested MdmHierarchy using the OLAP Metadata API. If the hierarchy is read from the OLAP Catalog, then add a level to the hierarchy in the catalog table, or remove the hierarchy from the table if it is no longer relevant.