deleteSelf() updating;
The deleteSelf method of the ExternalObject class deletes the external object. This method enables you to perform a cursor-based, or positioned, deletion update of the current proxy object. As this method can be used to delete a proxy object only when it has been selected, the object must have been read from the external database by using an external collection or an iterator "query" method.
To delete an external object that has just been created, you must first refetch that object using query methods of a collection. If you attempt to delete an object immediately after creating it, an ODBC exception is raised.