Question

我需要创建一个复杂的SQL查询并向其添加行号。我的查询有3个表连接，添加了一个带有union的自定义行。无论我如何尝试，我都会遇到语法错误，请帮我找到解决方案。

主要查询：

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'

我需要在此表中添加rank（），而不会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'

导致行号：1,1,2，我得到了与Rank（）相同的结果

有人可以帮忙吗？

我尝试的方式：

    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唯一，您将在RANK，DENSE_RANK和ROW_NUMBER中获得重复值。

您正在对您的联合中的两个查询应用排名，并且每个查询将返回包含1的独立排名顺序。我认为您希望在两个联合语句中返回唯一值，然后使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

如果我理解了您的问题，那么我认为您需要将g++表达式置于联盟之外，如下所示：

ROW_NUMBER

使用连接表sql对联合进行排名

2 个答案: