How to fix the Oracle error ORA-24085: operation failed, queue string is invalid?

In this post, you’ll learn more about the Oracle ErrorORA-24085: operation failed, queue string is invalid with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-24085: operation failed, queue string is invalid

Reason for the Error ORA-24085: operation failed, queue string is invalid

An attempt was made to enqueue, dequeue or administer a queue which is invalid. This could have occured because the payload type of the queue’s queue table was dropped or rules associated with queue subscribers got altered or dropped.

How to fix the Error ORA-24085: operation failed, queue string is invalid ?

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

Drop the queue table setting the force option to true.