创建触发器时出现sql错误

Question

我在 mysql 中输入了这段代码，它给出了一个错误：

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;

错误是：

#1064 - 您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以在第 3 行的 '' 附近使用正确的语法

有人知道我做错了什么吗？

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;

|