How to fix the Oracle error ORA-29388: plan/consumer_group string is part of more than one top-plan?

In this post, you’ll learn more about the Oracle ErrorORA-29388: plan/consumer_group string is part of more than one top-plan with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29388: plan/consumer_group string is part of more than one top-plan

Reason for the Error ORA-29388: plan/consumer_group string is part of more than one top-plan

An attempt was made to delete a subtree that includes a plan or consumer group that is part of more than one top-plan as part of procedure DELETE_PLAN_CASCADE or package DBMS_RESOURCE_MANAGER. Such a plan or consumer group cannot be deleted.

How to fix the Error ORA-29388: plan/consumer_group string is part of more than one top-plan ?

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

Check the ancestors of the plan or consumer group and make sure it is only part of the top-plan that includes the subtree being deleted.