Trigger Stock phpMyAdmin Ausgabenachricht auslösen
DELIMITER $$
CREATE TRIGGER testa_trig
BEFORE INSERT ON testa
FOR EACH ROW BEGIN
IF (NEW.c > 100) THEN
SIGNAL SQLSTATE '02000' SET MESSAGE_TEXT = 'Warning: c > 100!';
END IF;
END$$
DELIMITER ;
Breakable Barracuda