[英]Query XML in SQL Server
I have a XML formatted like this : 我有这样的XML 格式 :
<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>
I want to create a simple query that will return each CalculationIncluded
with the code
and the IsSelected
value. 我想创建一个简单的查询,该查询将返回每个
CalculationIncluded
以及code
和IsSelected
值。 My final goal is to create a stored procedure that will receive a code
, a province
and a CalculationListType
and return the IsSelected
value. 我的最终目标是创建一个存储过程,该存储过程将接收
code
, province
和CalculationListType
并返回IsSelected
值。
I tried to use example from here , here and here but I keep getting null
or empty values. 我尝试从此处 , 此处和此处使用示例,但我不断得到
null
或空值。
Query I tried to make using one of the example : 我尝试使用以下示例之一进行查询:
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
My final goal is to create a stored procedure that will receive a code, a province and a CalculationListType and return the IsSelected value.
我的最终目标是创建一个存储过程,该存储过程将接收代码,省份和CalculationListType并返回IsSelected值。
This should not need a stored procedure... 这不需要存储过程...
The following will return 1 (= true) or 0 (= false) or NULL (= not existing) 以下将返回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')
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