raise DbException("Method 'create_list' not implemented")
def set_one(self, table, q_filter, update_dict, fail_on_empty=True, unset=None, pull=None, push=None,
raise DbException("Method 'create_list' not implemented")
def set_one(self, table, q_filter, update_dict, fail_on_empty=True, unset=None, pull=None, push=None,