In this post, you’ll learn more about the Oracle ErrorORA-25320: Failed to create, alter, or remove Subscriber with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-25320: Failed to create, alter, or remove Subscriber
Reason for the Error ORA-25320: Failed to create, alter, or remove Subscriber
There is a pending enqueue or dequeue operation on this queue from the same session.
How to fix the Error ORA-25320: Failed to create, alter, or remove Subscriber ?
You can fix this error in Oracle by following the below steps
Either COMMIT or ROLLBACK pending enqueue or dequeue operation before attempting to create, alter, or remove the subscriber.