DELIMITER $$ CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`saleLabel_afterUpdate` AFTER UPDATE ON `vn`.`saleLabel` FOR EACH ROW IF NEW.stem >= (SELECT s.quantity FROM sale s WHERE s.id = NEW.saleFk) THEN UPDATE sale s SET s.isPicked = TRUE WHERE s.id = NEW.saleFk; END IF$$ DELIMITER ;