我的“选择列表”与当前的“分组依据”子句不正确。我该如何解决？

Question

这是我的查询

SELECT
    artist.firstname
    ,artist.lastname
    ,AvgRating = AVG(painting.rating) OVER ( PARTITION BY painting.artistid )
    ,MaxRating = MAX(painting.rating) OVER ( PARTITION BY painting.artistid )
    ,MinRating = MIN(painting.rating) OVER ( PARTITION BY painting.artistid )
FROM 
    painting
JOIN 
    artist ON painting.artistid = artist.id
GROUP BY
    artist.firstname
    ,artist.lastname
HAVING COUNT(painting.title) > 2

但是我得到这个错误：

  

列“ painting.ArtistId”在选择列表中无效，因为它既不包含在聚合函数中，也不包含在GROUP BY子句中。行：1

Answer 1

这可能会帮助

SELECT
     artist.firstname
    ,artist.lastname
    ,AvgRating = AVG(painting.rating)
    ,MaxRating = MAX(painting.rating)
    ,MinRating = MIN(painting.rating)
FROM painting
JOIN artist ON painting.artistid = artist.id
GROUP BY
     artist.firstname
    ,artist.lastname
HAVING COUNT(painting.artistid) > 2

Answer 2

您只需要将ArtistId添加到GROUP BY。

SELECT
    artist.firstname
    ,artist.lastname
    ,AvgRating = AVG(painting.rating) OVER ( PARTITION BY painting.artistid )
    ,MaxRating = MAX(painting.rating) OVER ( PARTITION BY painting.artistid )
    ,MinRating = MIN(painting.rating) OVER ( PARTITION BY painting.artistid )
FROM painting
JOIN artist ON painting.artistid = artist.id
GROUP BY
    artist.firstname
    ,artist.lastname
    ,painting.artistid
HAVING COUNT(painting.title) > 2