Question

我有桌子VIDEO和cols（url，title，desc，...）和桌子FAVORITE和cols（fav_url，thumb）。

当我尝试使用以下方法从两个表中删除行时

delete from video join favorite on video.url=favorite.fav_url
  where url in (select url from video where title like '%thumb%')

我收到错误。

有没有办法执行一个查询？

Answer 1

尝试：

DELETE t1, t2 FROM video t1 JOIN favorite t2 ON t1.url=t2.fav_url
WHERE url IN
    (SELECT url FROM (SELECT * FROM video) t3 WHERE title LIKE '%thumb%')

Answer 2

编辑现在尝试

当你有一个像我一样的小问题时，你实际上可以做这种类型的删除查询。阅读这篇文章，详细解释。

MySQL Error 1093 - Can't specify target table for update in FROM clause

DELETE video, favorite 
    FROM video
    JOIN favorite 
        ON video.url = favorite.fav_url
    JOIN (SELECT DISTINCT url 
                  FROM video 
                  WHERE title like '%thumb%') tt ON video.url = tt.url

删除连接嵌套查询

2 个答案: