Question

mysql 触发器在触发后执行两条语句

我想实现的是create trigger on blog after delete for each row begin

1 delete from comment where comment.blogid = old.blogi
2 delete from reply where ...

Answer 1

DELIMITER //

CREATE TRIGGER tr_del_blog
after DELETE ON blog
FOR EACH ROW
BEGIN
delete from comment where comment.blogid = old.blogi;
delete from reply where reply.blogid = old.blogi;
END;
//

DELIMITER ;

这个效果?

Answer 2

在业务逻辑层多写个逻辑，分开来执行不是就可以了,封装也就可以二个都是实现了

。

Answer 3

然后呢？说清楚啊