MySQL IF THEN을 사용한 MySQL 트리거

내 스토리지는 INNODB입니다. I'm trying to create an trigger with 2 queries in IF statement. 당신은 내게 오류를주는 방아쇠를 볼 수 있습니다

delimiter |
CREATE TRIGGER count_delete_videos BEFORE DELETE ON videos
  FOR EACH ROW BEGIN
    UPDATE counts SET count = count - 1 WHERE name = 'all';

    IF OLD.published = 1 THEN
        DELETE FROM videos_categories WHERE id_video = OLD.id;
        DELETE FROM videos_tags WHERE id_video = OLD.id;
    END IF;
  END;
|
delimiter ;

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 '= OLD.id;
    END IF;
  END' at line 6

이것은 내가 첫 번째로 활성화하는 2 개의 트리거입니다.

delimiter |
CREATE TRIGGER count_delete_videos_tags AFTER DELETE ON videos_tags
  FOR EACH ROW BEGIN
    UPDATE tags SET count = count - 1 WHERE id = OLD.id_tag;
  END;
|
delimiter ;


delimiter |
CREATE TRIGGER count_delete_videos_categories AFTER DELETE ON videos_categories
  FOR EACH ROW BEGIN
    UPDATE categories SET count = count - 1 WHERE id = OLD.id_category;

    IF OLD.id_category <> 20 AND OLD.id_category <> 34 THEN
        UPDATE counts SET count=count-1 WHERE name='english';
    ELSEIF OLD.id_category = 34 THEN
        UPDATE counts SET count=count-1 WHERE name='german';
    ELSEIF OLD.id_category = 20 THEN
        UPDATE counts SET count=count-1 WHERE name='italian';
    END IF;
  END;
|
delimiter ;

하지만 이것은 완벽하게 작동합니다

delimiter |
    CREATE TRIGGER count_delete_videos BEFORE DELETE ON videos
      FOR EACH ROW BEGIN
        UPDATE counts SET count = count - 1 WHERE name = 'all';

        IF OLD.published = 1 THEN
            DELETE FROM videos_categories WHERE id_video = OLD.id;
        END IF;
      END;
    |
    delimiter ;

Query OK, 0 rows affected (0.16 sec)

첫 번째 트리거가 작동하도록하려면 어떻게해야합니까? 내가 뭘 잘못하고 있니? 도와 주셔서 감사합니다.

 

해결 방법

 

두 트리거 모두 정상이라고 말할 수 있지만 다음을 시도해 볼 수 있습니다.

DELIMITER $$
CREATE TRIGGER count_delete_videos BEFORE DELETE ON videos
FOR EACH ROW 
BEGIN
  UPDATE counts SET count = count - 1 WHERE name = 'all';

  IF OLD.published = 1 THEN BEGIN
    DELETE FROM videos_categories WHERE id_video = OLD.id;
    DELETE FROM videos_tags WHERE id_video = OLD.id;
  END; END IF;
END$$

DELIMITER ;

 

참조 페이지 https://stackoverflow.com/questions/10374454