上创建触发器

Question

SQL错误我输入这个代码到MySQL，它给了一个错误：

CREATE TRIGGER delete_vote_topic BEFORE DELETE ON vote_topic 
    FOR EACH ROW BEGIN 
    DELETE FROM vote_option WHERE vote_topic_id = OLD.id; 
    DELETE FROM vote_option_votes WHERE vote_topic_id = OLD.id; 
    END; 

的错误是：

#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 '' at line 3

任何人知道我在做什么错？

Answer 1

尝试使用分隔符

delimiter | 

CREATE TRIGGER delete_vote_topic BEFORE DELETE ON vote_topic 
FOR EACH ROW 
BEGIN 
    DELETE FROM vote_option 
    WHERE vote_topic_id = OLD.id; 
    DELETE FROM vote_option_votes 
    WHERE vote_topic_id = OLD.id; 
END; 

|