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。
