动态查询UnPivoting：
使用SYS.COLUMNS和东西（动态查询）来连接|将单个列中的多个列（需要添加）分组。
实施例S1，S2，S3 ......作为SNO
后来动态查询与逆透视处理，以多列数据转换成单排。 带有ID的列PDT列下的示例D1，D2，D3 .....用于映射静态数据。
动态查询结果存储在表变量中供以后处理。创建了CTE的是用来连接与静态数据非透视数据
表变量来得到最终结果。
If OBJECT_ID('UnpivotData','u') is not null
Drop table UnPivotData
go
Create table UnPivotData
(
Id int,
BILLNO int,
Cus_Name varchar(10),
[Date] date,
Tot_Bal Int,
S1 smallint,
S2 smallint,
S3 smallint,
S4 smallint,
D1 varchar(3),
D2 varchar(3),
D3 varchar(3),
D4 varchar(3),
Q1 smallint,
Q2 smallint,
Q3 smallint,
Q4 smallint,
U1 smallint,
U2 smallint,
U3 smallint,
U4 smallint,
T1 smallint,
T2 smallint,
T3 smallint,
T4 smallint,
Total int,
CusCode varchar(2)
)
insert into UnPivotData
Select 29, 1, 'XXX', '03-04-2017', 1932, 1, 2, 3, NULL, 'AAA', 'BBB', 'CCC', NULL, 6, 30, 6, NULL, 80, 35, 67, NULL, 480, 1050, 402, 0, 1932, 'DF'
union
Select 40, 2,'YYY', '04-04-2017', 6454, 1, 2, 3, NULL, 'AAA', 'DDD', 'FFF', NULL, 30, 24, 50, NULL, 80, 96, 35, NULL, 2400, 2304, 1750, 0, 6454, 'MQ'
DECLARE @SNO AS NVARCHAR(MAX)='',@PDT AS NVARCHAR(MAX)='',@QTY AS NVARCHAR(MAX)='', @UNIT AS NVARCHAR(MAX)='', @TOT AS NVARCHAR(MAX)=''
SET @SNO = STUFF((SELECT distinct ',' + QuoteName(C.name)
from sys.tables T join sys.columns C on T.object_id=C.object_id and T.object_id=OBJECT_ID('UnPivotData','U') and C.Name like'S'+'[0-9]%'
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),1,1,'')
SET @PDT = STUFF((SELECT distinct ',' + QuoteName(C.name)
from sys.tables T join sys.columns C on T.object_id=C.object_id and T.object_id=OBJECT_ID('UnPivotData','U') and C.Name like'D'+'[0-9]%'
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),1,1,'')
SET @QTY = STUFF((SELECT distinct ',' + QuoteName(C.name)
from sys.tables T join sys.columns C on T.object_id=C.object_id and T.object_id=OBJECT_ID('UnPivotData','U') and C.Name like'Q'+'[0-9]%'
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),1,1,'')
SET @UNIT = STUFF((SELECT distinct ',' + QuoteName(C.name)
from sys.tables T join sys.columns C on T.object_id=C.object_id and T.object_id=OBJECT_ID('UnPivotData','U') and C.Name like'U'+'[0-9]%'
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),1,1,'')
SET @TOT = STUFF((SELECT distinct ',' + QuoteName(C.name)
from sys.tables T join sys.columns C on T.object_id=C.object_id and T.object_id=OBJECT_ID('UnPivotData','U') and C.Name like'T'+'[0-9]%'
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),1,1,'')
Declare @Query1 Nvarchar(MAX),@Query2 Nvarchar(MAX),@Query3 Nvarchar(MAX),@Query4 Nvarchar(MAX),@Query5 Nvarchar(MAX)
Set @Query1='select ID,SNO from
(
Select ID,'[email protected]+' from UnPivotData
)L
unpivot
(
SNo for col in('+ @SNO +')
) u'
Set @Query2='select ID,PDT from
(
Select ID,'[email protected]+' from UnPivotData
)L
unpivot
(
PDT for col in('+ @PDT +')
) u'
Set @Query3='select ID,QTY from
(
Select ID,'[email protected]+' from UnPivotData
)L
unpivot
(
QTY for col in('+ @QTY +')
) u'
Set @Query4='select ID,UNIT from
(
Select ID,'[email protected]+' from UnPivotData
)L
unpivot
(
UNIT for col in('+ @UNIT +')
) u'
Set @Query5='select ID, TOT from
(
Select ID,'[email protected]+' from UnPivotData
)L
unpivot
(
TOT for col in('+ @TOT +')
) u'
Declare @t1 table
(
id int,
SNO Smallint
)
Declare @t2 table
(
id int,
PDT Varchar(3)
)
Declare @t3 table
(
id int,
QTY Smallint
)
Declare @t4 table
(
id int,
UNIT Smallint
)
Declare @t5 table
(
id int,
TOT Smallint
)
Insert into @T1 execute (@Query1)
Insert into @T2 execute (@Query2)
Insert into @T3 execute (@Query3)
Insert into @T4 execute (@Query4)
Insert into @T5 execute (@Query5)
;With Cte
as
(
Select UD.Id,BILLNO,Cus_Name,[Date],Tot_Bal,SNO,Row_Number() over(partition by T1.ID Order by T1.ID)Row_NO--,PDT,QTY,UNIT,TOT
,Total,CusCode
from UnPivotData UD join @t1 T1 on UD.Id=T1.id
)
,
Cte1
as
(
Select Cte.*,PDT from Cte Join
(Select *,Row_Number() over(partition by ID Order by ID)Row_NO from @t2) T2 on Cte.ID=T2.ID and Cte.Row_NO=T2.Row_NO
)
,
Cte2
as
(
Select Cte1.*,QTY from Cte1 Join
(Select *,Row_Number() over(partition by ID Order by ID)Row_NO from @t3) T3 on Cte1.ID=T3.ID and Cte1.Row_NO=T3.Row_NO
)
,
Cte3
as
(
Select Cte2.*,UNIT from Cte2 Join
(Select *,Row_Number() over(partition by ID Order by ID)Row_NO from @t4) T4 on Cte2.ID=T4.ID and Cte2.Row_NO=T4.Row_NO
)
,
Cte4
as
(
Select Cte3.*,TOT from Cte3 Join
(Select *,Row_Number() over(partition by ID Order by ID)Row_NO from @t5) T5 on Cte3.ID=T5.ID and Cte3.Row_NO=T5.Row_NO
)
Select Id,BILLNO,Cus_Name,[Date],Tot_Bal,SNO,PDT,QTY,UNIT,TOT
,Cuscode
from Cte4
我建议你的目标表有它自己的问题 - 你存储的数据*应该*现在跨多行。我自己的建议是使用两个表格 - 一个用于“标题”（共同值），另一个用于“订单项”。除非你能证明存储性能需要，否则停止*存储*可计算数据（TOT_BAL）。 –
@Damien_The_Unbeliever是的，我有你的建议的两张桌子，但在这里我只提到了详细的表格。我只会将通用信息存储在Header表中。请帮助我 –