在SQL Server中的两个表之间映射多个列

Question

我有2张桌子

1. [付款方法]
2. [供应商工具输入]

表1 - PaymentMethod具有以下信息

ComCd | AccountGroup | BankCountry | Currency | VARSPaymentMethod | SAPPaymentMethod
_____________________________________________________________________________________
SG00    ABC                         SGD         Check                  C
SG00    ABC                         SGD         Return Check           E
SG00    ABC                         Not SGD     Check                  D
SG00    XYZ                         SGD         Check                  C
SG00    XYZ                         SGD         Return Check           E
SG00    XYZ                         Not SGD     Check                  D 

表2 - [Vendor Tool Input]包含以下信息

VendorNo | AccountGroup | BankCountry  | ComCode | PaymentMethod | Payment Currency
__________________________________________________________________________________
TEST1      ABC                            SG00      Check           SGD
TEST2      ABC                            SG00      Return Check    SGD
TEST4      ABC                            SG00      Check           AHP
TEST6      XYZ                            SG00      Check           SGD
TEST7      XYZ                            SG00      Return Check    SGD
TEST9      XYZ                            SG00      Check           AHP

预期输出 -

VendorNo(from table 2)    |   sappaymentmethod(from table 1)
_______________________________________________________________
TEST1                                  C
TEST2                                  E
TEST4                                  D
TEST6                                  C
TEST7                                  E
TEST9                                  D

这是我写过的查询，但它看起来不起作用 -

SELECT A.[SAPPaymentMethod] ,B.[VendorNo],B.[ComCode],B.PaymentMethod,A.Currency,B.[Payment Currency] FROM [master].[dbo].[PaymentMethod] A, [master].[dbo].[Vendor Tool Input] B Where  B.ComCode
=A.Comcd and B.AccountGroup=A.AccountGroup and B.BankCountry is null and B.[Payment Currency]=A.Currency and B.PaymentMethod=A.VARSPaymentMethod 

Answer 1

;WITH CTE1 AS
(
   SELECT ComCd,AccountGroup ,SAPPaymentMethod,ROW_NUMBER() OVER(PARTITION BY AccountGroup ORDER BY  SAPPaymentMethod) RNOPAY
   FROM PaymentMethod 
)
,
CTE2 AS
(
   SELECT ComCd,VendorNo , AccountGroup,
   ROW_NUMBER() OVER(PARTITION BY AccountGroup ORDER BY VendorNo)   RNOVEN
   FROM VendorToolInput
)
SELECT CTE2.VendorNo,CTE1.SAPPaymentMethod 
FROM CTE1 
JOIN CTE2 ON CTE1.AccountGroup=CTE2.AccountGroup AND CTE1.RNOPAY=CTE2.RNOVEN
AND CTE1.ComCd=CTE2.ComCd

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