Sql 将数据行转换为列并按月显示

我有下表：-

CREATE TABLE #TmpData (
 RType Varchar(10),
 Client VARCHAR(10),
 TRequest INT,
 Due INT,
 Month INT
  );

  INSERT INTO #TmpData VALUES ('P', 'Name1',54,67,1),('P', 'Name5',5,47,1),('A', 'Name6',3,90,1 ),('A', 'Name3',4,43,1 ),('P', 'Name1',0,10,2)
  ,('P', 'Name2',1,78,2),('P', 'Name4',54,67,3),('P', 'Name3',5,47,3),('A', 'Name6',3,90,3 ),('P', 'Name8',3,233,3 ),('P', 'Name1',23,457,4)
  ,('P', 'Name7',3,6,4 ),('P', 'Name8',65,548,4 ),('P', 'Name2',3,56,5 ),('P', 'Name3',65,87,6 ),('P', 'Name4',3,56,7 ),('P', 'Name9',65,87,7 )

 SELECT * FROM #TmpData

我想将其数据按行转换为列，并按月显示。我附上我需要的结果集截图

例如，我在这里用了7个月，但最多可以用12个月。

请帮忙

---

谢谢

当与求和函数一起使用时，您可以尝试使用大小写

案例当

比较

月份

然后

总和

该

任务

或

到期

分组依据

依据

RType

，

Client

SELECT RType,
       Client,
       SUM(CASE WHEN Month = 1 THEN TRequest ELSE 0 END) 'Jan Totle',
       SUM(CASE WHEN Month = 1 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 2 THEN TRequest ELSE 0 END) 'Feb Totle',
       SUM(CASE WHEN Month = 2 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 3 THEN TRequest ELSE 0 END) 'March Totle',
       SUM(CASE WHEN Month = 3 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 4 THEN TRequest ELSE 0 END) 'April Totle',
       SUM(CASE WHEN Month = 4 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 5 THEN TRequest ELSE 0 END) 'May Totle',
       SUM(CASE WHEN Month = 5 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 6 THEN TRequest ELSE 0 END) 'June Totle',
       SUM(CASE WHEN Month = 6 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 7 THEN TRequest ELSE 0 END) 'July Totle',
       SUM(CASE WHEN Month = 7 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 8 THEN TRequest ELSE 0 END) 'Aug Totle',
       SUM(CASE WHEN Month = 8 THEN Due ELSE 0 END) '#of Request',
       SUM(CASE WHEN Month = 9 THEN TRequest ELSE 0 END) 'Sep Totle',
       SUM(CASE WHEN Month = 9 THEN Due ELSE 0 END) '#of Request',
       ....
FROM TmpData
GROUP BY RType,
       Client

编辑

如果要使

month

列成为动态的，可以使用动态透视

DECLARE @cols AS NVARCHAR(MAX),
        @Pivotcols AS NVARCHAR(MAX),
        @query  AS NVARCHAR(MAX);



SET @Pivotcols = STUFF((SELECT DISTINCT 
                                ',SUM(CASE WHEN Month = ' + CAST(Month AS VARCHAR(5)) + ' THEN TRequest ELSE 0 END) as ''' + FORMAT(DATEADD(mm,Month,'1900-01-01'),'MMM') + ' Totle ''',
                                ',SUM(CASE WHEN Month = ' + CAST(Month AS VARCHAR(5)) + ' THEN Due ELSE 0 END) as ''' + FORMAT(DATEADD(mm,Month,'1900-01-01'),'MMM') + ' Totle '''
            FROM TmpData 
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'');


set @query = 'SELECT RType,Client, '+  @Pivotcols + ' FROM TmpData GROUP BY RType,Client'



execute(@query)

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寻找。你能帮我解决问题吗？我发现很难回答。我能让月列动态吗？也就是说，只显示有数据的月份，就像如果没有8月份的数据，那么我不想显示那样column@RahulAggarwal你可以使月栏动态，我编辑我的答案