查询XML在SQL Server

我有一个XML formatted like this：查询XML在SQL Server

<Maximum.Edm.CodeIncludedInCalculation > 
    <CalculationsByProvince> 
    <Maximum.Edm.IncludedInByProvince Province="QC"> 
     <RevenueCodeCalculations CalculationListType="RevenueCode"> 
     <Maximum.Edm.CalculationIncluded Code="@Vacation" IsSelected="True" /> 
     <Maximum.Edm.CalculationIncluded Code="@RRQ" IsSelected="True" /> 
     <Maximum.Edm.CalculationIncluded Code="@EmploymentInsurance" IsSelected="True" /> 
     [...] 
     </RevenueCodeCalculations> 
     <TaxableBenefitCalculations CalculationListType="TaxableBenefits"> 
     <Maximum.Edm.CalculationIncluded Code="1" IsSelected="False" /> 
     <Maximum.Edm.CalculationIncluded Code="AV. VIE FE" IsSelected="True" /> 
     </TaxableBenefitCalculations> 
     <DeductionCodeCalculations CalculationListType="DeductionCode"> 
     <Maximum.Edm.CalculationIncluded Code="123" IsSelected="False" /> 
     <Maximum.Edm.CalculationIncluded Code="456" IsSelected="True" /> 
     <Maximum.Edm.CalculationIncluded Code="AC" IsSelected="False" /> 
     [...] 
     </DeductionCodeCalculations> 
    </Maximum.Edm.IncludedInByProvince> 
    <Maximum.Edm.IncludedInByProvince Province="ON"> 
     [...] 
    </Maximum.Edm.IncludedInByProvince> 
    </CalculationsByProvince> 
</Maximum.Edm.CodeIncludedInCalculation>

我想创建一个简单的查询将返回各CalculationIncluded与code和IsSelected值。我的最终目标是创建一个存储过程，该存储过程将收到code，province和CalculationListType并返回IsSelected值。

我试图用从here，here和here的例子，但我不断收到null或空值。

查询我试着用的例子之一进行：

select * from 
    (select 
    pref.value('(text())[1]', 'varchar(32)') as RoleName 
    from 
     Payroll.RevenueCode CROSS APPLY 
IncludeInCalculation.nodes('/Maximum.Edm.CodeIncludedInCalculation/CalculationsByProvince/Maximum.Edm.IncludedInByProvince/RevenueCodeCalculations') AS IncludeInCalculation(pref) 
) as Result

来源

2017-04-05 PL Audet

我的最终目标是创建一个将获得一个代码，一个省，一个CalculationListType并返回IsSelected值的存储过程。

这不应该需要一个存储过程...

下面将返回1（= true）或0（= FALSE）或NULL（=不存在）

DECLARE @Province NVARCHAR(100)='QC'; 
DECLARE @ListType NVARCHAR(100)='RevenueCode'; 
DECLARE @Code NVARCHAR(100)='@EmploymentInsurance' 

SELECT @xml.value(N'(/Maximum.Edm.CodeIncludedInCalculation 
        /CalculationsByProvince 
        /Maximum.Edm.IncludedInByProvince[@Province=sql:variable("@Province")] 
        /RevenueCodeCalculations[@CalculationListType=sql:variable("@ListType")] 
        /Maximum.Edm.CalculationIncluded[@Code=sql:variable("@Code")]/@IsSelected)[1]',N'bit')

来源

2017-04-05 14:28:34 Shnugo

该作品顶尖！！非常感谢 –

男孩我误解了问题+1 –

查询XML在SQL Server

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