查询检索最受欢迎的视频

Question

我有一张表格，用于维护与视频及其相关内容相关的信息。

所以我想得到最喜欢的视频，因为我用以下方式查询

  

选择VideoId，计数（LikeStatus）来自Likes，其中Status ='0'分组由VideoId

我得到以下输出

工作正常，但我需要这个查询是嵌套查询我的意思是

select title,desc from videos where videoID IN (select VideoId,count(LikeStatus) from Likes where Status='0' group by VideoId)

我知道子查询必须只返回一个字段，那么还有其他好的方法吗？

Answer 1

这样的东西？

SELECT *
FROM   Videos
 INNER
  JOIN (
        SELECT VideoId
             , Count(*) As number_of_likes
        FROM   Likes
        WHERE  Status = '0'
        GROUP
            BY VideoId
       ) As likes
    ON likes.VideoId = Videos.VideoId

Answer 2

如果我理解得很好，你会尝试做下面的代码（？）

SELECT title,desc 
FROM videos V
LEFT JOIN Likes L ON V.id = L.VideoId

WHERE (select count(LikeStatus) from Likes DL where DL.Status='0' AND DL.VideoId = V.id group by DL.VideoId) > 0

GROUP BY V.id

ORDER BY (select count(LikeStatus) from Likes DL where DL.Status='0' AND DL.VideoId = V.id group by DL.VideoId) DESC

我是对的吗？