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Question

我有图像中的数据..

类型将根据类型ID选择进行更改

我正在尝试实现和输出类似于以下内容： -

166su01count对应于166su01类型，它应该显示日期4/16/2018的5（daystotal）

166su01Rate对应于166su01类型，它应显示日期4/16/2018的60.00（percount）

166su02count对应于166su02类型，它应显示日期4/16/2018的7（daystotal）

166su02Rate对应于166su02类型，它应该显示28.57（percount）的日期4/16/2018 等等......

根据选择更改类型请帮助..

Answer 1

为MS-SQL Server提供解决方案 -

创建表格和数据 -

CREATE TABLE [dbo].[Type](
    [daynumbers] [date] NULL,
    [daystotal] [int] NULL,
    [types] [varchar](15) NULL,
    [percount] [float] NULL
) ON [PRIMARY]


INSERT INTO [dbo].[Type]
           ([daynumbers]
           ,[daystotal]
           ,[types]
           ,[percount])
     VALUES
('2018-04-16',  5   ,'166su01', 60)
,('2018-04-16', 7   ,'166su02', 28.57)
,('2018-04-18', 8   ,'166su02', 62.5)
,('2018-04-19', 5   ,'166su01', 100)

问题分为两部分 -

1. 从单个列（类型）执行多个枢轴（一个用于percount，一个用于daystotal）
2. 使查询适用于动态sql

第1部分 -

这可以通过复制类型列并将其命名为types1并将表旋转两次来解决 - 一个用于percount，一个用于daystotal

SELECT *
FROM
(SELECT *,types+' Count'[types1] FROM dbo.Type) AS SourceTable --duplicate column created here

PIVOT  
(  
SUM(percount) 
FOR types IN ([166su01], [166su02])  
) AS PivotTable
PIVOT  
(  
SUM(daystotal) 
FOR types1 IN ([166su01 Count], [166su02 Count])  
) AS PivotTable

这将创建额外的行 因此，按照以下方式使用daynumbers列对它们进行分组 -

SELECT daynumbers,Sum([166su01])[166su01],Sum( [166su01 Count]) [166su01 Count], Sum([166su02])[166su02],Sum( [166su02 Count]) [166su02 Count] FROM  
(SELECT *,types+' Count'[types1] FROM dbo.Type) AS SourceTable

PIVOT  
(  
SUM(percount) 
FOR types IN ([166su01], [166su02])  
) AS PivotTable
PIVOT  
(  
SUM(daystotal) 
FOR types1 IN ([166su01 Count], [166su02 Count])  
) AS PivotTable
group by
daynumbers

第2部分 - 使此查询动态化 需要动态定义以下项目 -

1. 选择查询的标题 - 总和（[166su01]）[166su01]，总和（[166su01计数]）[166su01计数]，总和（[166su02]）[166su02]，总和（[166su02计数]）[166su02计数]
2. Percount Pivot - [166su01]，[166su02]
3. DaysTotal Pivot - [166su01 Count]，[166su02 Count]

这可以通过 -

来完成

DECLARE @PivotPercount NVARCHAR(MAX) = N'' --Variable to hold types to pivot for percount
SELECT @PivotPercount = @PivotPercount + ', [' + COALESCE(types, '') + ']' FROM (SELECT DISTINCT types FROM dbo.Type)DT
SELECT @PivotPercount = LTRIM(STUFF(@PivotPercount, 1, 1, '')) --Remove first comma and space
print @PivotPercount

DECLARE @PivotDaysTotal NVARCHAR(MAX) = N'' --Variable to hold types to pivot for daystotal
SELECT @PivotDaysTotal = @PivotDaysTotal + ', [' + COALESCE(types, '') + ' Count]' FROM (SELECT DISTINCT types FROM dbo.Type)DT
SELECT @PivotDaysTotal = LTRIM(STUFF(@PivotDaysTotal, 1, 1, '')) --Remove first comma and space
print @PivotDaysTotal

DECLARE @Headers NVARCHAR(MAX) = N'' --Variable to hold unique customers to be used in PIVOT clause
SELECT @Headers = @Headers + ', Sum([' + COALESCE(types, '') + '])'+'[' + COALESCE(types, '') + ']' + ',Sum( [' + COALESCE(types, '') + ' Count]) ' + '[' + COALESCE(types, '') + ' Count]'   FROM (SELECT DISTINCT types FROM dbo.Type)DT
SELECT @Headers = LTRIM(STUFF(@Headers, 1, 1, '')) --Remove first comma and space
print @Headers

现在结合一切 - 最终查询 -

DECLARE @PivotPercount NVARCHAR(MAX) = N'' --Variable to hold types to pivot for percount
SELECT @PivotPercount = @PivotPercount + ', [' + COALESCE(types, '') + ']' FROM (SELECT DISTINCT types FROM dbo.Type)DT
SELECT @PivotPercount = LTRIM(STUFF(@PivotPercount, 1, 1, '')) --Remove first comma and space
print @PivotPercount

DECLARE @PivotDaysTotal NVARCHAR(MAX) = N'' --Variable to hold types to pivot for daystotal
SELECT @PivotDaysTotal = @PivotDaysTotal + ', [' + COALESCE(types, '') + ' Count]' FROM (SELECT DISTINCT types FROM dbo.Type)DT
SELECT @PivotDaysTotal = LTRIM(STUFF(@PivotDaysTotal, 1, 1, '')) --Remove first comma and space
print @PivotDaysTotal

DECLARE @Headers NVARCHAR(MAX) = N'' --Variable to hold unique customers to be used in PIVOT clause
SELECT @Headers = @Headers + ', Sum([' + COALESCE(types, '') + '])'+'[' + COALESCE(types, '') + ']' + ',Sum( [' + COALESCE(types, '') + ' Count]) ' + '[' + COALESCE(types, '') + ' Count]'   FROM (SELECT DISTINCT types FROM dbo.Type)DT
SELECT @Headers = LTRIM(STUFF(@Headers, 1, 1, '')) --Remove first comma and space
print @Headers

DECLARE @SQLStatement NVARCHAR(MAX) = N'' --Variable to hold t-sql query
--Generate dynamic PIVOT query here
SET @SQLStatement =
N'SELECT daynumbers,' + @Headers +
' FROM  
(SELECT *,types+'' Count''[types1] FROM dbo.Type) AS SourceTable

PIVOT  
(  
SUM(percount) 
FOR types IN ('+ @PivotPercount +')  
) AS PivotTable
PIVOT  
(  
SUM(daystotal) 
FOR types1 IN (' + @PivotDaysTotal + ')  
) AS PivotTable
group by
daynumbers
'
print @SQLStatement
--Execute the dynamic t-sql PIVOT query below
EXEC (@SQLStatement)

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