刪除XML節點2008表列基於元素值

Question

我有一個XML結構如下

<ControlVisibilityRule xmlns="urn:gjensidige:processguide:201201"> 
    <Id>e68c53a3-79ba-41e4-81cb-341050016783</Id> 
    <Code>b53b687c-2617-4d02-8aa0-4d0d0898bd15_Code</Code> 
    <Author /> 
    <Updated>9/5/2012</Updated> 
    <Sequence>0</Sequence> 
    <FromControls>  
     <Control>  
      <Code>ada</Code>  
      <Id>ba2abc55-3b25-4280-8bd0-a1d23a4575d0</Id>  
      <FilterValues>   
       <FilterValue xmlns:p5="urn:gjensidige:processguide:201201" p5:Id="e2b830f8-9a58-4edf-b56c-4c5a9580f362" p5:Code="1" p5:LookupId="ebb6066f-a976-4dcb-aabe-07c4f7d2686b" /> 
       <FilterValue xmlns:p5="urn:gjensidige:processguide:201201" p5:Id="44e268ef-2869-4df1-b61e-c59c2d3f1a5a" p5:Code="56" p5:LookupId="ebb6066f-a976-4dcb-aabe-07c4f7d2686b" /> 
      </FilterValues>  
     </Control> 
    </FromControls> 
    <ToControls>  
     <Control>  
      <Code>adeUnittest01</Code>  
      <Id>0a1cd240-20ee-4405-9613-d3006693c390</Id>  
     </Control> 
    </ToControls> 
    <IsVisible>True</IsVisible> 
</ControlVisibilityRule> 

我想刪除元素ID中的XPath

/qn:ControlVisibilityRule/qn:ToControls/qn:Control/qn:Id 

，其值是0a1cd240-20ee-4405-9613-d3006693c390。我已經做了，直到下面，但我敢肯定，我的思念與可變元素值的比較。

declare @Id nvarchar(50) 
declare @ruleId nvarchar(50) 

;WITH XMLNAMESPACES ('urn:gjensidige:processguide:201201' as qn) 
update 
    pdr_processdefinitionrule 
set 
    PDR_RuleXml.modify('delete (/qn:ControlVisibilityRule/qn:ToControls/qn:Control/qn:Id=sql:variable("@Id"))') 
where pdr_guid = @ruleId 

任何指導，可以理解

Answer 1

你需要做的，而不是：

;WITH XMLNAMESPACES ('urn:gjensidige:processguide:201201' as qn) 
update 
    pdr_processdefinitionrule 
set 
    PDR_RuleXml.modify('delete (/qn:ControlVisibilityRule/qn:ToControls/qn:Control/qn:Id[text()=sql:variable("@Id")])') 
where 
    pdr_guid = @ruleId 

基本上，你要在text()（文字：XML元素包含）刪除qn:Id元素您的變量@Id匹配。