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 ...
第1个回答 2013-05-02
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?
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?
第2个回答 2013-05-02
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
。
。
第3个回答 2013-05-02
然后呢？说清楚啊
