MySQL触发器 Update触发Insert失败

今天工作需要,想要实现将仅对状态更新的表进行历史记录显示,于是考虑在原表中建立触发器,将更新的内容同时写入另一张表

于是进行测试

--建立测试表CREATE TABLE `triggletest_triggle` (

`id` INT(11) NOT NULL,

`name` VARCHAR(5) NULL DEFAULT NULL,

PRIMARY KEY (`id`)

)

COLLATE='latin1_swedish_ci'

ENGINE=InnoDB

--建立目标表

CREATE TABLE `triggletest` (

`seq` INT(11) NOT NULL,

`id` INT(11) NOT NULL,

`name` VARCHAR(5) NULL DEFAULT NULL,

PRIMARY KEY (`seq`),

INDEX `id` (`id`)

)

COLLATE='latin1_swedish_ci'

ENGINE=InnoDB;

---写入测试数据

INSERT INTO `triggletest_triggle` VALUES(1,'A');

--建立触发器

DROP TRIGGER if EXISTS test1

CREATE TRIGGER test1

AFTER UPDATE ON triggletest_triggle

FOR EACH ROW

BEGIN

INSERT INTO triggletest(id) values (new.id);

END

执行触发器语句,报错,报错内容如下:

/* SQL错误(1064):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 'CREATE TRIGGER test1

AFTER UPDATE ON triggletest_triggle

FOR EACH ROW

BEGIN ' at line 2 */

---最终实现代码

DROP TRIGGER if EXISTS test1;

CREATE TRIGGER test1 AFTER UPDATE ON test.triggletest_triggle FOR EACH ROW

BEGIN

INSERT INTO triggletest(id,name) values (new.id,new.name);

END;

分析,由于访问工具HediSQL,导致无法正常创建触发器,相同语句,在HediSQL中执行,报错,使用shell调用mysql,直接执行程序,成功。

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