从 XML 中提取值不适用于查询节点或值

Question

我正在使用 SQL Server 2016，我正在尝试从下面的 XML 中提取 <Org>Insurance Technologies Corporation</Org> 值。

我已尝试在我的 tsql 代码中使用 nodes 和 value 查询该值，但无济于事，因为我不断获得 Rater 列的 NULL 值。

我不确定在这两种情况下我做错了什么。任何帮助/方向将不胜感激。谢谢。

这是我的 XML：

<ACORD xmlns="http://www.ACORD.org/standards/PC_Surety/ACORD1.11.0/xml/" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SignonRq>
    <SignonTransport>
      <SignonRoleCd>Agent</SignonRoleCd>
      <CustId>
        <SPName>turborater.com</SPName>
        <CustLoginId>99999</CustLoginId>
      </CustId>
    </SignonTransport>
    <ClientDt>2019-07-05T11:05:36</ClientDt>
    <CustLangPref>EN-US</CustLangPref>
    <ClientApp>
      <Org>Insurance Technologies Corporation</Org>
      <Name>ITC.Insurance.EmpowerAnnSvngsRR.TX</Name>
      <Version>1.0.0.0</Version>
    </ClientApp>
  </SignonRq>
 </ACORD>

这是我使用节点的 tsql 代码：

SELECT * 
FROM (
    SELECT rtr.BridgedDate, rtr.RealTimeRequestSysId, rtr.QuoteId, rtr.AgentId, rtr.XmlRequest
        , x.m.value('(Org)[1]', 'varchar(max)') as Rater
    FROM dbo.AUT_RealTimeRequest rtr
        OUTER APPLY rtr.XmlRequest.nodes('ACORD/SignonRq/ClientApp') x(m)
    WHERE rtr.BridgedDate BETWEEN '2020-11-01 00:00:00.000' AND '2020-11-30 23:59:59.997'
) y
WHERE y.AgentId = 3
AND y.QuoteId IS NOT NULL
ORDER BY y.QuoteId asc, y.BridgedDate asc;

这是我使用值的 tsql 代码：

SELECT rtr.BridgedDate, rtr.XMLRequest, 
rtr.XMLRequest.value('(/ACORD/SignonRq/ClientApp/Org)[1]','varchar(max)') as RaterValue
FROM dbo.AUT_RealTimeRequest rtr
WHERE rtr.QuoteId IS NOT NULL
AND rtr.AgentId = 3 --21001
AND rtr.BridgedDate BETWEEN '2020-11-01 00:00:00.000' AND '2020-11-30 23:59:59.997'
ORDER BY rtr.QuoteId asc, rtr.BridgedDate asc;

Answer 1

您可以尝试使用WITH XMLNAMESPACES 来处理命名空间：

declare @xml xml='<ACORD xmlns="http://www.ACORD.org/standards/PC_Surety/ACORD1.11.0/xml/" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <SignonRq>
    <SignonTransport>
      <SignonRoleCd>Agent</SignonRoleCd>
      <CustId>
        <SPName>turborater.com</SPName>
        <CustLoginId>99999</CustLoginId>
      </CustId>
    </SignonTransport>
    <ClientDt>2019-07-05T11:05:36</ClientDt>
    <CustLangPref>EN-US</CustLangPref>
    <ClientApp>
      <Org>Insurance Technologies Corporation</Org>
      <Name>ITC.Insurance.EmpowerAnnSvngsRR.TX</Name>
      <Version>1.0.0.0</Version>
    </ClientApp>
  </SignonRq>
 </ACORD>'

; WITH XMLNAMESPACES (DEFAULT 'http://www.ACORD.org/standards/PC_Surety/ACORD1.11.0/xml/') 
SELECT 
     l.value (
    'Org[1]'
    ,'varchar(100)' ) Org
    FROM @xml.nodes('//SignonRq') r(n) CROSS APPLY r.n.nodes('ClientApp') lines(l)

结果：

Answer 2

您正在忽略 XML 数据中存在的 XML 命名空间：

<ACORD xmlns="http://www.ACORD.org/standards/PC_Surety/ACORD1.11.0/xml/" 
       *****************************************************************
       This is the "default" XML namespace for this XML data

试试这个：

WITH XMLNAMESPACES(DEFAULT 'http://www.ACORD.org/standards/PC_Surety/ACORD1.11.0/xml/')
    SELECT 
        rtr.BridgedDate, rtr.XMLRequest, 
        rtr.XMLRequest.value('(/ACORD/SignonRq/ClientApp/Org)[1]', 'VARCHAR(50)') AS RaterValue
    FROM 
        dbo.AUT_RealTimeRequest rtr
    WHERE 
        rtr.QuoteId IS NOT NULL
        AND rtr.AgentId = 3 --21001
        AND rtr.BridgedDate BETWEEN '2020-11-01 00:00:00.000' AND '2020-11-30 23:59:59.997'
    ORDER BY 
        rtr.QuoteId ASC, rtr.BridgedDate ASC;