According to MySQL docs, the error #1193
occurs when you use wrong code for SQLSTATE
.
Message: Unknown system variable %s
And, as you can see on the same page, the SQLSTATE 99003
is not defined.
Frage
Ok so i'm working on triggers, and it tells me it(MySQL workbench 5.2) doesn't recognize this variable.
*Error Code: 1193. Unknown system variable error_msg_3*
I think it would be correct using it in a trigger, please help me
CREATE TRIGGER controlla_MaxCARDINALITA_INSERT
BEFORE INSERT ON SENTIERO__HA__TAPPA
FOR EACH ROW
BEGIN
DECLARE max_cardinalita INTEGER;
DECLARE error_msg_3 CONDITION FOR SQLSTATE '99003';
SELECT COUNT(*) into max_cardinalita
FROM SENTIERO__HA__TAPPA
WHERE IDsentiero=NEW.IDsentiero;
IF max_cardinalita>=10 THEN
SIGNAL error_msg_3;
SET error_msg_3='INSERT: Il sentiero ha già il massimo numero di tappe consentito';
END IF;
END$$
EDIT ::
I tried this, and it seems working
DECLARE msg VARCHAR(255);
set msg = concat('MyTriggerError: Trying to insert a negative value in trigger_test: ');
signal sqlstate '45000' set message_text = msg;
Lösung
According to MySQL docs, the error #1193
occurs when you use wrong code for SQLSTATE
.
Message: Unknown system variable %s
And, as you can see on the same page, the SQLSTATE 99003
is not defined.