Sql 如何按分组列排列/密集排列

使用sql查询以何种可能的方式/方法获得此类结果。

对每位参赛者的分数进行排名，对决赛选手进行排序，显示最终排名

这个@Prince Jea，给出了一个解决方案，但它不是我所期望的实际结果，尽管它是正确的。尽管如此，我仍在寻找所需的输出

SQL查询

    SELECT ContestantID,JudgeID,ScorePoints, 
    RANK() OVER (ORDER BY ScorePoints DESC) AS xRank,
    DENSE_RANK() OVER (ORDER BY ScorePoints DESC) AS fRank
FROM 
( 
SELECT ContestantID , ScorePoints, JudgeID
FROM Score
) AS a
ORDER BY 1

结果

我更喜欢一些关于SQL Fiddle的资料

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第一个CTE在裁判栏上做旋转

第二个CTE是根据裁判得分计算每个参赛者的排名

第三个CTE是计算每个参赛者的最终分数

  ; WITH CTE 
    AS
    (
    SELECT ContestantID,
           MAX(CASE when JudgeID =1 THEN ScorePoints END ) as [JudgeID#1],
           MAX(CASE when JudgeID =2 THEN ScorePoints END ) as [JudgeID#2],
           MAX(CASE when JudgeID =3 THEN ScorePoints END ) as [JudgeID#3]
    FROM Score
    Group by ContestantID
    )
    ,  CTE2 AS
    (
    SELECT ContestantID,
           [JudgeID#1],
           RANK() OVER   ( Order by JudgeID#1 desc ) as 'Rank#1',       
           [JudgeID#2],
           RANK() OVER   ( Order by JudgeID#2 desc ) as 'Rank#2',       
           [JudgeID#3],
           RANK() OVER   ( Order by JudgeID#3 desc ) as 'Rank#3'

    FROM CTE
    )
    , CTE3 as
    (
    SELECT ContestantID,
          SUM (Rank#1+ Rank#2 + Rank#1) as total
    FROM CTE2
    GROUP BY ContestantID
    )
    SELECT CTE2.*, CTE3.total as 'Final Score'
    FROM  CTE2
    JOIN CTE3 
    ON CTE2.ContestantID = CTE3.ContestantID
    ORDER BY ContestantID

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这里有一个动态的pivot查询，可以与任意一组法官一起使用。枢轴代码改编自

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您需要一个只查询3名法官的查询，还是该查询需要能够处理动态的法官？动态的法官，先生。但是如果是最好的，我就买了。太好了！这就是我要找的。我接受你的回答。非常感谢你。

DECLARE @cols AS NVARCHAR(MAX),
    @query  AS NVARCHAR(MAX),
    @cols2 AS NVARCHAR(MAX),
    @cols3 AS NVARCHAR(MAX)

select @cols = STUFF((SELECT distinct ', ' + QUOTENAME(JudgeID) 

                    from Score
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')


select @cols2 = STUFF((SELECT distinct '+' + QUOTENAME('rn' + CONVERT(varchar(1),JudgeID)) 
                    from Score
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

select @cols3 = STUFF((SELECT distinct ', ' + QUOTENAME(JudgeID) + ', rank() over (order by  ' + QUOTENAME(JudgeId) + ' desc) ' + QUOTENAME('rn' + CONVERT(varchar(1),JudgeID))

                    from Score
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

set @query = 'SELECT * ,
        rank() over (order by ' + @cols2 + ') rn, 
        ( ' + @cols2 + ' ) fn
        FROM (SELECT ContestantID,' + @cols3 + ' from 
             (
              select ContestantID, ScorePoints, JudgeID
              from Score
            ) x
            pivot 
            (
                max(ScorePoints)
                for JudgeID in (' + @cols + ')
            ) p ) t1'

execute(@query)