An integer that indicates the result of the comparison; the table below lists the possible values and their meanings:
If the database is successfully deleted, then a success event is fired on the request object returned from this method, with its result set to undefined. If an error occurs while the database is being deleted, then an error event is fired on the request object that is returned from this method.
If an error occurs while the database connection is being opened, then an error event is fired on the request object returned from this method.