sql - 如何通过 "nodes"命令在 SQL XML 查询中使用命名空间？

Question

我正在尝试从以下 XML 查询中查询字段(这实际上是一个网络服务调用):

<soap:Envelope xmlns:xsi="[schema]" xmlns:xsd="[shema]" xmlns:soap="[schema]">
  <soap:Body>
    <RunPackage xmlns="http://tempuri.org/">
      <xmlDoc>
        <Request>
          <SubscriberCode>543253</SubscriberCode>
          <CompanyCode>54325</CompanyCode>
          <BranchName>TestBranchName</BranchName>
          <TempWorksUserName>TempWorksUserName</TempWorksUserName>
[...]

使用以下 XML 查询:

WITH XMLNAMESPACES('[schema]' AS soap2, DEFAULT '[schema]')

SELECT TransactionID, T2.Loc.query('data(Request/SubscriberCode)') as 'SubscriberCode'
FROM TempWorksRequest
CROSS APPLY RequestXML.nodes('soap2:Envelope/soap2:Body/RunPackage/xmlDoc') as T2(Loc)

它运行但不返回任何结果!

如果我构建相同的查询但删除命名空间的东西，那么它就可以工作了。例如，以下工作正常:

<xmlDoc> <Request> <SubscriberCode>543253</SubscriberCode> <CompanyCode>54325</CompanyCode> <BranchName>TestBranchName</BranchName> [...]

SQL 查询:

-- Define a namespace for MITS so we can use the MITS namespace. WITH XMLNAMESPACES('[schema]' AS soap2, DEFAULT '[schema]')

SELECT TransactionID, T2.Loc.query('data(Request/SubscriberCode)') as 'SubscriberCode' FROM TempWorksRequest CROSS APPLY RequestXML.nodes('xmlDoc') as T2(Loc)

有什么想法吗？

Answer 1

找到问题感谢马克!命名空间必须显式声明。

新的 WORKING 查询:

WITH XMLNAMESPACES('[URI1]' AS ns, '[URI2]' AS soap) 

SELECT TransactionID, 
    T2.Loc.query('data(ns:SubscriberCode)') as 'SubscriberCode',
FROM TempWorksRequest
CROSS APPLY RequestXML.nodes('soap:Envelope/soap:Body/ns:RunPackage/ns:xmlDoc/ns:Request') as T2(Loc)