Błąd zapytania sql : INSERT INTO `_update` (`system`, `updateDate`, `updateTime`, `updateUser`) SELECT '326', '2023-09-22','4:01:37','0' FROM systems WHERE not exists (SELECT id_update FROM _update WHERE system = '326') LIMIT 1;
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'system = '326') LIMIT 1' at line 4