ORA-24011
        cannot drop QUEUE, string should be stopped first
        
        
        Cause
        The queue was not stopped. Either enqueue or dequeue was still enabled.
        Action
        Stop the queue first using the STOP_QUEUE command to disable both enqueue and dequeue.
        
     
    
    
        ORA-24011
        cannot drop QUEUE, string should be stopped first
        
        
        Cause
        The queue has not been stopped i.e. either enqueue or dequeue is still enabled.
        Action
        Stop the queue first using the STOP_QUEUE command and disable it from both enqueueing and dequeueing.
        
     
    
    
        ORA-24011
        cannot drop QUEUE, string should be stopped first
        
        
        Cause
        The queue has not been stopped i.e. either enqueue or dequeue is still enabled.
        Action
        Stop the queue first using the STOP_QUEUE command and disable it from both enqueueing and dequeueing.