取決於條件XML使用XQuery

更新屬性值，我有以下XML取決於條件XML使用XQuery

<Root xmlns:test="http://sample"> 
    <Values> 
     <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="1"> 
     </Value> 
     <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="1"> 
     </Value> 
     <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2"> 
     </Value> 
     <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2"> 
     </Value> 
     <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="1"> 
     </Value> 
    </Values> 
</Root>

在這裏，我想用type=2所有元素值更新爲type = 3。

請有人可以告訴我如何做到這一點？

來源

2012-11-28 Ashwani K

declare @XML xml = 
'<Root xmlns:test="http://sample"> 
    <Values> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="1"></Value> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="1"></Value> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2"></Value> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2"></Value> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="1"></Value> 
    </Values> 
</Root>'; 

while @XML.exist('declare namespace d3p1="http://www.w3.org/2001/XMLSchema-instance"; 
        /Root/Values/Value[@d3p1:type = "1"]') = 1 
begin 
    set @XML.modify('declare namespace d3p1="http://www.w3.org/2001/XMLSchema-instance"; 
        replace value of (/Root/Values/Value[@d3p1:type="1"]/@d3p1:type)[1] 
        with 2') 
end 

select @XML

結果：

<Root xmlns:test="http://sample"> 
    <Values> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2" /> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2" /> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2" /> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2" /> 
    <Value xmlns:d3p1="http://www.w3.org/2001/XMLSchema-instance" d3p1:type="2" /> 
    </Values> 
</Root>

來源

2012-11-28 14:29:43

由於它的工作:) –

取決於條件XML使用XQuery

回答

相關問題