Question

以下是我尝试使用case语句

的select查询的一部分

CASE SoftripNetTest.dbo.ResGeneral.ResStatus
   WHEN 'X' THEN CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePrice', 0) AS DECIMAL(18, 2)) 
           + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceTax', 0) AS DECIMAL(18, 2)) 
           + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceGST', 0) AS DECIMAL(18, 2)) 
       as total                       
   ELSE  (SUM(SoftripNetTest.dbo.ResGeneral.TTlQuotePrice + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceTax + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceGST)  as total
END

这是整个查询

SELECT     
    SoftripNetTest.dbo.ResGeneral.ResNumber, SoftripNetTest.dbo.ResGeneral.LeadName, 
    SoftripNetTest.dbo.ResGeneral.NoPax, SoftripNetTest.dbo.ResGeneral.MarketCode, 
    SoftripNetTest.dbo.ResGeneral.ResProductCode, SoftripNetTest.dbo.ResGeneral.ResTourCode, 
    SoftripNetTest.dbo.ResGeneral.SellMethod, SoftripNetTest.dbo.ResGeneral.DepDate, 
    CONVERT(datetime, SoftripNetTest.dbo.ResGeneral.BookDate, 101) AS bookdate, 
    SoftripNetTest.dbo.ResGeneral.BookedBy, 
    CASE SoftripNetTest.dbo.ResGeneral.ResStatus
       WHEN 'X' THEN CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePrice', 0) AS DECIMAL(18, 2)) 
          + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceTax', 0) AS DECIMAL(18, 2)) 
          + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceGST', 0) AS DECIMAL(18, 2)) 
       ELSE  (SUM(SoftripNetTest.dbo.ResGeneral.TTlQuotePrice + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceTax + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceGST) 
    END,
    SoftripNetTest.dbo.Product.ProductName, SoftripNetTest.dbo.ResGeneral.ParentResNumber, 
    SoftripNetTest.dbo.ResGeneral.ResStatus, 
    dbo.ResItinerary_insurance.LocalCost * dbo.ResItinerary_insurance.Qty AS insurance
FROM         
    SoftripNetTest.dbo.ResGeneral 
INNER JOIN
    SoftripNetTest.dbo.Product ON SoftripNetTest.dbo.ResGeneral.ResProductCode = SoftripNetTest.dbo.Product.ProductCode 
LEFT OUTER JOIN
    dbo.ResItinerary_insurance ON SoftripNetTest.dbo.ResGeneral.ResNumber = dbo.ResItinerary_insurance.ResNumber
WHERE     
    (SoftripNetTest.dbo.ResGeneral.BookDate BETWEEN @startdate AND @enddate)
GROUP BY 
    SoftripNetTest.dbo.ResGeneral.ResNumber, SoftripNetTest.dbo.ResGeneral.LeadName, 
    SoftripNetTest.dbo.ResGeneral.NoPax, SoftripNetTest.dbo.ResGeneral.MarketCode, 
    SoftripNetTest.dbo.ResGeneral.ResProductCode, SoftripNetTest.dbo.ResGeneral.ResTourCode, 
    SoftripNetTest.dbo.ResGeneral.SellMethod, SoftripNetTest.dbo.ResGeneral.DepDate, $
    SoftripNetTest.dbo.ResGeneral.BookDate, SoftripNetTest.dbo.ResGeneral.BookedBy, 
    SoftripNetTest.dbo.ResGeneral.BookSource, SoftripNetTest.dbo.Product.ProductName, 
    SoftripNetTest.dbo.ResGeneral.ParentResNumber, SoftripNetTest.dbo.ResGeneral.ResStatus,

在我的案例陈述中，我一直在AS附近收到错误？ case语句可以在查询中使用吗？我希望对于resstatus A和X都能以相同的方式拉动所有内容，除了总计这是最好的方法吗？我使用的是fn_getxmlvalue这是一个函数，因为取消的信息存储在xml中。

Answer 1

         CASE SoftripNetTest.dbo.ResGeneral.ResStatus
       WHEN 'X' THEN CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePrice', 0) AS DECIMAL(18, 2)) 
                          + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceTax', 0) AS DECIMAL(18, 2)) 
                          + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceGST', 0) AS DECIMAL(18, 2)) 

       ELSE  (SUM(SoftripNetTest.dbo.ResGeneral.TTlQuotePrice + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceTax + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceGST)  as total
    END 
    as total

您不能命名case语句的各个部分，但您可以命名结果列，只需将您的名称移到case语句的末尾

Answer 2

在as total声明的END之后移动CASE别名。

         CASE SoftripNetTest.dbo.ResGeneral.ResStatus
       WHEN 'X' THEN CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePrice', 0) AS DECIMAL(18, 2)) 
                          + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceTax', 0) AS DECIMAL(18, 2)) 
                          + CAST(SoftripNetTest.dbo.fn_GetXMLValue(SoftripNetTest.dbo.fn_GetXMLValue(AdditionalData, 'HeaderCancellationData', ''), 'TotalQuotePriceGST', 0) AS DECIMAL(18, 2)) 
       ELSE  (SUM(SoftripNetTest.dbo.ResGeneral.TTlQuotePrice + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceTax + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceGST)
    END   as total

Answer 3

只需移除as total中间的CASE。

CASE语句最后会输出一个字段，您将其命名为结束后：

CASE WHEN ...
     WHEN ...
     ELSE ...
END as 'Blah'

Answer 4

从以下行中删除“as total”别名：

ELSE  (SUM(SoftripNetTest.dbo.ResGeneral.TTlQuotePrice + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceTax + SoftripNetTest.dbo.ResGeneral.TTlQuotePriceGST)  as total
        END

存储过程中的case语句问题

4 个答案: