ORA-02087
        object locked by another process in same transaction
        
        
        Cause
        A database link is being used in the cluster database environment that loops back to the same instance.  One session is trying to convert a lock that was obtained by the other session.
        Action
        Get the more restrictive lock first.  For example, if session 1 gets a share lock and session 2 gets an exclusive lock on the same object, get the exclusive lock first.  Or, simply use the same session to access the object.
        
     
    
    
        ORA-02087
        object locked by another process in same transaction
        
        
        Cause
        A database link is being used in the cluster database environment that loops back to the same instance.  One session is trying to convert a lock that was obtained by the other session.
        Action
        Get the more restrictive lock first.  For example, if session 1 gets a share lock and session 2 gets an exclusive lock on the same object, get the exclusive lock first.  Or, simply use the same session to access the object.
        
     
    
    
        ORA-02087
        object locked by another process in same transaction
        
        
        Cause
        A database link is being used in the cluster database environment that loops back to the same instance.  One session is trying to convert a lock that was obtained by the other session.
        Action
        Get the more restrictive lock first.  For example, if session 1 gets a share lock and session 2 gets an exclusive lock on the same object, get the exclusive lock first.  Or, simply use the same session to access the object.