無法從Oracle SQL中的xml值提取數據

Question

我有以下2個xml值，它們相似，存儲在request_xml列中，並且是clob數據類型：

<?xml version='1.0' encoding='utf-8'?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
   <S:Body>
      <ns5:updateRechargeTicket xmlns:ns5="http://service.soap.CDRator.com" xmlns:ns2="http://core.result.service.soap.CDRator.com/xsd" xmlns="http://core.data.soap.CDRator.com/xsd" xmlns:ns4="http://data.soap.CDRator.com/xsd" xmlns:ns3="http://payment.result.service.soap.CDRator.com/xsd">
         <ns5:contextUser>
            <ns4:brandKey>FNC</ns4:brandKey>
         </ns5:contextUser>
         <ns5:rechargeTicket>
            <id xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
            <billingGroupId>200907111603122893</billingGroupId>
            <code>TIME_DIRECTDEBIT</code>
            <dateCreated xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true" />
            <dayOfMonth>1</dayOfMonth>
            <nextRechargeDate>2015-06-01+02:00</nextRechargeDate>
            <rechargeAmount>20</rechargeAmount>
         </ns5:rechargeTicket>
      </ns5:updateRechargeTicket>
   </S:Body>
</S:Envelope>


<?xml version='1.0' encoding='utf-8'?><S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/"><S:Body><ns5:addDirectDebitPayment xmlns:ns5="http://service.soap.CDRator.com" xmlns:ns2="http://core.result.service.soap.CDRator.com/xsd" xmlns="http://core.data.soap.CDRator.com/xsd" xmlns:ns4="http://data.soap.CDRator.com/xsd" xmlns:ns3="http://payment.result.service.soap.CDRator.com/xsd"><ns5:contextUser><ns4:brandKey>FNC</ns4:brandKey></ns5:contextUser><ns5:billingGroupId>201008141448491784</ns5:billingGroupId><ns5:amount>10.0</ns5:amount></ns5:addDirectDebitPayment></S:Body></S:Envelope>

我只想使用1個選擇查詢從這2個xml值中提取BillingGroupId。 是否可能或者我想使用單獨的選擇查詢來為這2個xml值選擇BillingGroupId？ 我想從此xml值中提取billingGroupID值，但不返回任何內容。 我在無法識別的選擇查詢中犯了一個小錯誤。

這是我的查詢：

SELECT xt_billingGroupId.BILLING_GROUP_ID
FROM TEMP_SOAP_MONITORING_TOPUP sm
CROSS JOIN XMLTable(XMLNAMESPACES (
      'http://schemas.xmlsoap.org/soap/envelope/' AS "soapenv",
      'http://service.soap.CDRator.com' as "ns",
      'http://core.data.soap.CDRator.com/xsd' as "ax2130",
      'http://webshop.result.service.soap.CDRator.com/xsd' as "ax2147",
      'http://core.signup.data.soap.CDRator.com/xsd' as "ns3",
      'http://service.soap.CDRator.com' as "ns5",
      'http://core.result.service.soap.CDRator.com/xsd' as "ax232"
    ),
    'for $i in //ns5:billingGroupId return $i'
    passing XMLType(sm.REQUEST_XML)
    columns "BILLING_GROUP_ID" VARCHAR2(100) path '/') xt_billingGroupId    
CROSS JOIN XMLTable(XMLNAMESPACES (
      'http://core.result.service.soap.CDRator.com/xsd' as "ax232"
    )

Answer 1

也是一種

select xt_billingGroupId.* from x,
XMLTable(XMLNAMESPACES (
      'http://schemas.xmlsoap.org/soap/envelope/' AS "soapenv",
      'http://service.soap.CDRator.com' as "ns",
      'http://core.data.soap.CDRator.com/xsd' as "ax2130",
      'http://webshop.result.service.soap.CDRator.com/xsd' as "ax2147",
      'http://core.signup.data.soap.CDRator.com/xsd' as "ns3",
      'http://service.soap.CDRator.com' as "ns5",
      'http://core.result.service.soap.CDRator.com/xsd' as "ax232"
    ),
    '//ns5:rechargeTicket'
    passing x
    columns "BILLING_GROUP_ID" VARCHAR2(100) path 'ax2130:billingGroupId',
    lineitem  XMLType  PATH '/') xt_billingGroupId ;

Answer 2

您嘗試訪問沒有名稱空間前綴的節點，因此要訪問默認名稱空間，但要訪問具有特定名稱空間前綴ns5 。 您可以使用local-name()來做到這一點：

SELECT xt_billingGroupId.BILLING_GROUP_ID
FROM TEMP_SOAP_MONITORING_TOPUP sm
CROSS JOIN XMLTable(XMLNAMESPACES (
      'http://schemas.xmlsoap.org/soap/envelope/' AS "S",
      'http://service.soap.CDRator.com' as "ns",
      'http://core.data.soap.CDRator.com/xsd' as "ax2130",
      'http://webshop.result.service.soap.CDRator.com/xsd' as "ax2147",
      'http://core.signup.data.soap.CDRator.com/xsd' as "ns3",
      'http://service.soap.CDRator.com' as "ns5",
      'http://core.result.service.soap.CDRator.com/xsd' as "ax232"
    ),
    '//ns5:rechargeTicket/*[local-name()="billingGroupId"]'
    passing XMLType(sm.REQUEST_XML)
    columns "BILLING_GROUP_ID" VARCHAR2(100) path '/') xt_billingGroupId;

BILLING_GROUP_ID                                                               
--------------------------------------------------------------------------------
200907111603122893                                                              

或通過通配符命名空間：

...
'//ns5:rechargeTicket/*:billingGroupId'
passing XMLType(sm.REQUEST_XML)
columns "BILLING_GROUP_ID" VARCHAR2(100) path '/') xt_billingGroupId    

如果您希望它具有靈活性，則可以只使用通配符，而無需完全引用包含節點。 然后您也不需要XMLNameSpaces定義。 使用您的兩個示例XML：

SELECT xt_billingGroupId.BILLING_GROUP_ID
FROM TEMP_SOAP_MONITORING_TOPUP sm
CROSS JOIN XMLTable('//*:billingGroupId'
    passing XMLType(sm.REQUEST_XML)
    columns "BILLING_GROUP_ID" VARCHAR2(100) path '/') xt_billingGroupId    

BILLING_GROUP_ID                                                               
--------------------------------------------------------------------------------
200907111603122893                                                              
201008141448491784