動態查詢UnPivoting：
使用SYS.COLUMNS和東西（動態查詢）來連接|將單個列中的多個列（需要添加）分組。
實施例S1，S2，S3 ......作爲SNO
後來動態查詢與逆透視處理，以多列數據轉換成單排。 帶有ID的列PDT列下的示例D1，D2，D3 .....用於映射靜態數據。
動態查詢結果存儲在表變量中供以後處理。創建了CTE的是用來連接與靜態數據非透視數據
表變量來得到最終結果。
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
我建議你的目標表有它自己的問題 - 你存儲的數據*應該*現在跨多行。我自己的建議是使用兩個表格 - 一個用於「標題」（共同值），另一個用於「訂單項」。除非你能證明存儲性能需要，否則停止*存儲*可計算數據（TOT_BAL）。 –
@Damien_The_Unbeliever是的，我有你的建議的兩張桌子，但在這裏我只提到了詳細的表格。我只會將通用信息存儲在Header表中。請幫助我 –