Question

以下XML无法解析。请找到我使用的确切代码-

DECLARE
  x XMLType := XMLType(
    '<ns0:CreateSODSOrder xmlns:ns0="http://schemas.dell.com/services/isp/OrderHistory/3.5" xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/" MessageType="CREATE">
  <ns0:CreateOrder>
    <ns0:SalesOrder ORDER_NUM="302199286" DPID="GB2003-2120-85049" PO_NUM="test" ORDER_BUID="202" DPS_NUM="" CHANNEL="ENTP" SUB_CHANNEL="GB_IC1A" ORDER_TYPE="GB ENT Order" REBOOKED_ORDER_NUM="" SALES_REP_NAME="SANJANA_D_C" ORIGINAL_ORDER_REF_NUM="" AMF_ORDER_NUM="" IR_NUM="GB2003-2120-85049" CCN="GB_IC1A" CUSTOMER_NUM="GB90117414" CUSTOMER_BUID="202" ORDER_DATE="2019-09-30T07:59:32" COUNTRY_NUM="GB" CCN_DESC="GB Indirect Certified  Tier 1A"/>
  </ns0:CreateOrder>
</ns0:CreateSODSOrder>');
BEGIN
  FOR r IN (
    SELECT ExtractValue(column_value,'Sales/@ORDER_NAME') as name
         -- ,ExtractValue(Value(p),'/row/Address/State/text()') as state
          --,ExtractValue(Value(p),'/row/Address/City/text()') as city
    FROM   TABLE(XMLSequence(Extract(x,'/CreateSODSOrder/CreateOrder/SalesOrder')))
    ) LOOP
          dbms_output.put_line(r.name);
  END LOOP;
    dbms_output.put_line('out');
END;

当我将ns0：与CreateSODSOrder / CreateOrder / SalesOrder一起使用时，它会引发XML解析错误。

Answer 1

由于缺少名称空间定义，您将收到XML解析错误。以下代码可以解决名称空间问题，但是在不知道您打算做什么的情况下很难获得值

DECLARE
  x XMLType := XMLType(
    '<ns0:CreateSODSOrder xmlns:ns0="http://schemas.dell.com/services/isp/OrderHistory/3.5" xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/" MessageType="CREATE">
  <ns0:CreateOrder>
    <ns0:SalesOrder ORDER_NUM="302199286" DPID="GB2003-2120-85049" PO_NUM="test" ORDER_BUID="202" DPS_NUM="" CHANNEL="ENTP" SUB_CHANNEL="GB_IC1A" ORDER_TYPE="GB ENT Order" REBOOKED_ORDER_NUM="" SALES_REP_NAME="SANJANA_D_C" ORIGINAL_ORDER_REF_NUM="" AMF_ORDER_NUM="" IR_NUM="GB2003-2120-85049" CCN="GB_IC1A" CUSTOMER_NUM="GB90117414" CUSTOMER_BUID="202" ORDER_DATE="2019-09-30T07:59:32" COUNTRY_NUM="GB" CCN_DESC="GB Indirect Certified  Tier 1A"/>
  </ns0:CreateOrder>
</ns0:CreateSODSOrder>');
BEGIN
  FOR r IN (
    SELECT ExtractValue(column_value,'Sales/@ORDER_NAME') as name
         -- ,ExtractValue(Value(p),'/row/Address/State/text()') as state
          --,ExtractValue(Value(p),'/row/Address/City/text()') as city
    FROM   TABLE(XMLSequence(Extract(x,'/ns0:CreateSODSOrder/ns0:CreateOrder/ns0:SalesOrder', 'xmlns:ns0="http://schemas.dell.com/services/isp/OrderHistory/3.5"' )))
    ) LOOP
          dbms_output.put_line(r.name);
  END LOOP;
    dbms_output.put_line('out');
END;

使用XMLTABLE是个好主意，因为ExtractValue有点过时和过时。

下面添加了使用XMLTABLE获取属性的示例代码。

DECLARE
CURSOR get_data IS
SELECT * 
FROM XMLTABLE(xmlnamespaces('http://schemas.dell.com/services/isp/OrderHistory/3.5' as "ns0", 'http://schemas.xmlsoap.org/soap/envelope/' as "soap-env" ),'ns0:CreateSODSOrder/ns0:CreateOrder/ns0:SalesOrder'
   passing xmltype('<ns0:CreateSODSOrder xmlns:ns0="http://schemas.dell.com/services/isp/OrderHistory/3.5" xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/" MessageType="CREATE">
  <ns0:CreateOrder>
    <ns0:SalesOrder ORDER_NUM="302199286" DPID="GB2003-2120-85049" PO_NUM="test" ORDER_BUID="202" DPS_NUM="" CHANNEL="ENTP" SUB_CHANNEL="GB_IC1A" ORDER_TYPE="GB ENT Order" REBOOKED_ORDER_NUM="" SALES_REP_NAME="SANJANA_D_C" ORIGINAL_ORDER_REF_NUM="" AMF_ORDER_NUM="" IR_NUM="GB2003-2120-85049" CCN="GB_IC1A" CUSTOMER_NUM="GB90117414" CUSTOMER_BUID="202" ORDER_DATE="2019-09-30T07:59:32" COUNTRY_NUM="GB" CCN_DESC="GB Indirect Certified  Tier 1A"/>
  </ns0:CreateOrder>
</ns0:CreateSODSOrder>')
           COLUMNS 
           ORDER_NUM      VARCHAR2(30)    PATH '@ORDER_NUM',
           DPID           VARCHAR2(30)    PATH '@DPID');
BEGIN  
FOR rec_ IN get_data LOOP
  dbms_output.put_line(rec_.ORDER_NUM);
  dbms_output.put_line(rec_.DPID);
  END LOOP;
END;

我正在尝试在PL / SQL中解析XML。我无法从标签中检索属性值，我在做什么错？

1 个答案: