Mysql創建觸發器

Question

我想創建一個觸發器，但在某處出現錯誤，我不知道如何編寫正確的。

CREATE TABLE IF NOT EXISTS Authorization(
userID INT PRIMARY KEY AUTO_INCREMENT, 
login VARCHAR(50) NOT NULL, 
password VARCHAR(64) NOT NULL, 
numberOfFailedAttempts SMALLINT, 
lastLogin TIMESTAMP, 
lockedAccount BOOLEAN 
); 


INSERT INTO Authorization SELECT NULL, "test1", SHA2('pass1', 256), 1, NULL, FALSE; 
INSERT INTO Authorization SELECT NULL, "test2", SHA2('pass2', 256), 1, NULL, FALSE; 
INSERT INTO Authorization SELECT NULL, "test3", SHA2('pass3', 256), 1, NULL, FALSE; 
INSERT INTO Authorization SELECT NULL, "test4", SHA2('pass4', 256), 1, NULL, FALSE;</code> 

我想創建一個觸發器，當更新用戶檢查numberOfFailedAttempts。如果numberOfFailedAttempts> 3，則將lockedAccount更改爲true。

CREATE TRIGGER trigger1 AFTER UPDATE ON `numberOfFailedAttempts` 
FOR EACH ROW 
BEGIN 
IF (`numberOfFailedAttempts` > 3) THEN 
UPDATE SET `lockedAccount` = 1 WHERE 1, LIMIT 1; 
END; 

的錯誤是：

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SET `lockedAccount` = 1 WHERE 1, LIMIT 1' at line 5</code> 

有人可以幫我嗎？

編輯：

在這段代碼中我有同樣的錯誤。

CREATE TRIGGER trigger1 AFTER UPDATE ON `numberOfFailedAttempts` 
FOR EACH ROW 
BEGIN 
IF (`numberOfFailedAttempts` > 3) THEN 
UPDATE `Authorization` SET `lockedAccount` = '1' WHERE  `Authorization`.`userID` = OLD.`userID`; 
END; 

編輯：

我改變代碼和它的工作。

delimiter // 

CREATE TRIGGER trigger1 BEFORE UPDATE ON Authorization 
FOR EACH ROW 
IF NEW.`numberOfFailedAttempts` > 3 THEN 
SET NEW.`lockedAccount` = 1; 
END IF;// 

Answer 1

希望它會爲你工作。

DELIMITER // 

    CREATE TRIGGER trigger_name AFTER UPDATE ON Authorization 
    FOR EACH ROW 
    BEGIN 
     IF (numberOfFailedAttempts > 3) THEN 
      UPDATE Authorization SET lockedAccount = 1 WHERE 1 LIMIT 1; 
     END IF; 
    END // 

DELIMITER ; 

Answer 2

CREATE TRIGGER trigger1 AFTER UPDATE ON `numberOfFailedAttempts` 
FOR EACH ROW 
BEGIN 
IF (`numberOfFailedAttempts` > 3) THEN 
UPDATE Authorization SET `lockedAccount` = 1 WHERE 1, LIMIT 1; 
END;