In this post, you’ll learn more about the Oracle ErrorXOQ-01915: The hierarchy level has no hierarchy level map. with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
XOQ-01915: The hierarchy level has no hierarchy level map.
Reason for the Error XOQ-01915: The hierarchy level has no hierarchy level map.
Cause: A hierarchy level map did not exist on the hierarchy level.
How to fix the Error XOQ-01915: The hierarchy level has no hierarchy level map. ?
You can fix this error in Oracle by following the below steps
Action: Create a hierarchy level map for the hierarchy levels of dimensions with associated materialized views.