Mysql_grant["mydba@%"]
privileges => ["select_priv", "insert_priv", "update_priv", "delete_priv", "create_priv", "drop_priv", "process_priv", "file_priv", "grant_priv", "index_priv", "alter_priv", "show_db_priv", "create_tmp_table_priv", "lock_tables_priv", "execute_priv", "create_view_priv", "show_view_priv", "create_routine_priv", "alter_routine_priv", "create_user_priv", "event_priv", "trigger_priv"]