与联合表相比排名 sql

Question

我需要进行复杂的 SQL 查询并向其中添加行号。我的查询有 3 tables 加入，添加了一个带联合的自定义行。无论我怎么尝试，我都会遇到语法错误，请帮助我找到解决方案。

主查询：

select null as EAN, 
       null as CustomsCode,
       ProductId as SupplierItemCode,
      '![CDATA['+Product.Name+']' as ItemDescription,
      '![CDATA['+Product.ShortDescription+']' as ItemNote, 
       null as VATType, 
      'CU' as PackageType, 
       Quantity as OrderQuantity,
      'darab' as UnitOfMeasure,
       UnitPriceExclTax as OrderedUnitNetPrice 
from [Order] inner join OrderItem on [Order].Id=OrderItem.OrderId 
     Inner join Product on OrderItem.ProductId=Product.Id 
where OrderId='150960'
UNION 
select null as EAN,
       null as CustomsCode,
       '00001' as SupplierItemCode, 
       '![CDATA[Szállítási díj]' as ItemDescription,
       '![CDATA[A termék postázási költsége]' as ItemNote,
       null as VATType, 'CU' as PackageType, 
       '1' as OrderQuantity, 
       'darab' as UnitOfMeasure, 
       OrderShippingExclTax as OrderedUnitNetPrice 
from [Order] 
Where [Order].Id='150960'

我需要将 rank() 添加到此 table 而不是获得与行号相同的数字我的版本是：

select Row_Number() OVER (Order by ProductID) as LineNumber,
       null as EAN,
       null as CustomsCode,
       ProductId as SupplierItemCode,
       '![CDATA['+Product.Name+']' as ItemDescription,
       '![CDATA['+Product.ShortDescription+']' as ItemNote,
        null as VATType,
       'CU' as PackageType, 
       Quantity as OrderQuantity,
       'darab' as UnitOfMeasure,
        UnitPriceExclTax as OrderedUnitNetPrice 
from [Order] inner join OrderItem on [Order].Id=OrderItem.OrderId
     Inner join Product on OrderItem.ProductId=Product.Id 
where OrderId='150960' 
UNION 
select Row_Number() OVER (Order by Id) as LineNumber,
      null as EAN, null as CustomsCode,
     '00001' as SupplierItemCode,
     '![CDATA[Szállítási díj]' as ItemDescription,
     '![CDATA[A termék postázási költsége]' as ItemNote, 
     null as VATType, 'CU' as PackageType, '1' as OrderQuantity, 
    'darab' as UnitOfMeasure, 
     OrderShippingExclTax as OrderedUnitNetPrice 
 from [Order] 
 Where [Order].Id='150960'

结果行号：1,1,2，我用 Rank() 得到了相同的结果

有人能帮忙吗？

我试过的方法：

    Select Rank() OVER (ORDER BY ProductId) as LineNumber, 
   From (select Row_Number() OVER (Order by ProductID) as LineNumber,
       null as EAN,
       null as CustomsCode,
       ProductId as SupplierItemCode,
       '![CDATA['+Product.Name+']' as ItemDescription,
       '![CDATA['+Product.ShortDescription+']' as ItemNote,
        null as VATType,
       'CU' as PackageType, 
       Quantity as OrderQuantity,
       'darab' as UnitOfMeasure,
        UnitPriceExclTax as OrderedUnitNetPrice 
from [Order] inner join OrderItem on [Order].Id=OrderItem.OrderId
     Inner join Product on OrderItem.ProductId=Product.Id 
where OrderId='150960' 
UNION 
select Row_Number() OVER (Order by Id) as LineNumber,
      null as EAN, null as CustomsCode,
     '00001' as SupplierItemCode,
     '![CDATA[Szállítási díj]' as ItemDescription,
     '![CDATA[A termék postázási költsége]' as ItemNote, 
     null as VATType, 'CU' as PackageType, '1' as OrderQuantity, 
    'darab' as UnitOfMeasure, 
     OrderShippingExclTax as OrderedUnitNetPrice 
 from [Order] 
 Where [Order].Id='150960')

Answer 1

如果您排名的值在记录顺序中不是唯一的，您将在 RANK、DENSE_RANK 和 ROW_NUMBER 中获得重复值。

您正在对联合中的两个查询应用排名，每个查询都将 return 一个包含 1 的独立排名顺序。我认为您想 return 两个联合语句中的唯一值然后用子查询对结果进行排名。

您可以通过将唯一值设置为

来避免这种情况

SELECT
    Count=Row_Number() OVER (Order by UniqueValue) as LineNumber
FROM
(
    SELECT
        UniqeValue=NEWID()
    FROM
      X

    UNION

    SELECT
        UniqeValue=NEWID()
    FROM
      X
)AS X

Answer 2

如果我理解你的问题，那么我认为你需要将你的 ROW_NUMBER 表达式放在 union 之外，如下所示：

SELECT
  ROW_NUMBER() OVER ( ORDER BY T.SupplierItemCode) AS LineNumber,
  T.EAN,
  T.CustomsCode,
  T.SupplierItemCode,
  T.ItemDescription,
  T.ItemNote,
  T.VATType,
  T.PackageType,
  T.OrderQuantity,
  T.UnitOfMeasure,
  T.OrderedUnitNetPrice
FROM
  (
    SELECT
      NULL AS EAN,
      NULL AS CustomsCode,
      ProductId AS SupplierItemCode,
      '![CDATA[' + Product.Name + ']' AS ItemDescription,
      '![CDATA[' + Product.ShortDescription + ']' AS ItemNote,
      NULL AS VATType,
      'CU' AS PackageType,
      Quantity AS OrderQuantity,
      'darab' AS UnitOfMeasure,
      UnitPriceExclTax AS OrderedUnitNetPrice
    FROM
      [Order]
      INNER JOIN OrderItem
        ON [Order].Id = OrderItem.OrderId
      INNER JOIN Product
        ON OrderItem.ProductId = Product.Id
    WHERE
      OrderId = '150960'
    UNION
    SELECT
      NULL AS EAN,
      NULL AS CustomsCode,
      '00001' AS SupplierItemCode,
      '![CDATA[Szállítási díj]' AS ItemDescription,
      '![CDATA[A termék postázási költsége]' AS ItemNote,
      NULL AS VATType,
      'CU' AS PackageType,
      '1' AS OrderQuantity,
      'darab' AS UnitOfMeasure,
      OrderShippingExclTax AS OrderedUnitNetPrice
    FROM
      [Order]
    WHERE
      [Order].Id = '150960'
  ) T

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