How to fix the Oracle error ORA-30336: no child for specified JOIN KEY?

In this post, you’ll learn more about the Oracle ErrorORA-30336: no child for specified JOIN KEY with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30336: no child for specified JOIN KEY

Reason for the Error ORA-30336: no child for specified JOIN KEY

The level specified in the REFERENCES portion of a JOIN KEY clause in a dimension DDL statement does not have a child level.

How to fix the Error ORA-30336: no child for specified JOIN KEY ?

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

Check the spelling of the level name referenced in the JOIN KEY clause. If the referenced level is the first level in the hierarchy, you need not and must not specify a JOIN KEY clause.