How to fix the Oracle error ORA-25290: Cannot complete operation on queue string with existing messages?

In this post, you’ll learn more about the Oracle ErrorORA-25290: Cannot complete operation on queue string with existing messages with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-25290: Cannot complete operation on queue string with existing messages

Reason for the Error ORA-25290: Cannot complete operation on queue string with existing messages

Queue already has messages. Cannot complete operation

How to fix the Error ORA-25290: Cannot complete operation on queue string with existing messages ?

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

Truncate the queue before adding/dropping a buffer