使用触发器更新另一个数据库中的表

Using Trigger to update table in another database(使用触发器更新另一个数据库中的表)

问题描述

我使用以下触发器更新mysql 5.0.7中另一个数据库中的用户表创建触发器没有错误，但在更新第一个数据库中的用户表时，触发器不起作用.有什么建议吗?

im using the following trigger to update the user table in another database in mysql 5.0.7 The creation of trigger gives no error but upon updating the user table in the first database the trigger is not working. Any suggestions?

DELIMITER $$         
DROP TRIGGER IF EXISTS after_update_user;

CREATE TRIGGER after_update_user;

AFTER UPDATE ON db_test.user  FOR EACH ROW;
BEGIN
    UPDATE TABLE db_testplus.user;
    SET  name = NEW.name;

    WHERE id = NEW.id;
END

$$
DELIMITER ;

我也使用了没有分号但仍然相同的代码

I also used this code without the semicolons but still the same

DELIMITER $$         
DROP TRIGGER IF EXISTS after_update_user

CREATE TRIGGER after_update_user

AFTER UPDATE ON db_test.user  FOR EACH ROW
BEGIN
    UPDATE TABLE db_testplus.user
    SET  name = NEW.name

    WHERE id = NEW.id
END;

$$
DELIMITER ;

最后是有效的代码

delimiter |
DROP TRIGGER IF EXISTS after_update_user|
 CREATE TRIGGER after_update_user AFTER UPDATE ON db_test.user
  FOR EACH ROW BEGIN
     UPDATE db_testplus.user SET name = NEW.name WHERE id = NEW.id;
  END;
|
delimiter ;

推荐答案

试试这个；

CREATE TRIGGER after_update_user

AFTER UPDATE ON db_test.user  FOR EACH ROW
  UPDATE TABLE db_testplus.user
  SET  name = NEW.name
  WHERE id = NEW.id;

省略开始结束关键字对我有用.

Omitting begin-end keywords worked for me.

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