Extract nested xml attributes from plsql

Question

Hi, I need to extract from xml file and insert into 2 oracle tables. The xml file is using attributes and I am having trouble retrieving the nested "code" element with its attributes in context of its parent "table" element. Here is a sample of the xml I have to extract the date from:
<?xml version="1.0" encoding="UTF-8"?>
<dataset-cv:dataset-cv dateProduced="2011-09-19 11:50:45" xmlns:dataset-cv="http://www.myurl.com/dataset-cv/1.0.0">
<lov>
<table id="00000000000001000" englishName="System Role" isSystem="true" status="Enabled">
<code id="00000000000000306" englishName="Helpdesk" code="1" status="Enabled"/>
<code id="000000000000000307" englishName="Reviewer" code="2" status="Enabled"/>
<code id="00000000000000308" englishName="Administrator" code="3" status="Enabled"/>
</table>
<table id="00000000000002000" englishName="Country" sSystem="false" status="Enabled">
<code id="000000000000002004" englishName="AFGHANISTAN" code="4" status="Enabled"/>
<code id="000000000000002008" englishName="ALBANIA" code="8" status="Enabled"/>
<code id="000000000000002010" englishName="ANTARCTICA" code="10" status="Enabled"/>
</table>
</lov>
</dataset-cv:dataset-cv>
I have been trying to use a query like this but does not retrieve code attributes in context of its parent table record.
SELECT ID, englishname, frenchname,status ,code
FROM XMLTABLE ( 'for $i in //lov//table return $i'
PASSING db_get_xml_from_file ('myfile.xml', 'XMLORADIR')
COLUMNS id VARCHAR2(32) PATH '@id'
, englishName VARCHAR2(32) PATH '@englishName'
, frenchName VARCHAR2(32) PATH '@frenchName'
, status VARCHAR2(6) PATH '@status'
, code VARCHAR2(6) PATH '//code//code') ;
Any assistance will be much appreciated
Thanks
Dave

Answer 1

Hi Dave,
Do you want something like this :
SQL> SELECT x1.id
  2       , x1.englishName
  3       , x1.frenchName
  4       , x1.status
  5       , x2.*
  6  FROM XMLTable(
  7         XMLNamespaces('http://www.myurl.com/dataset-cv/1.0.0' as "dc")
  8       , '/dc:dataset-cv/lov/table'
  9         passing xmltype(bfilename('TEST_DIR','myfile.xml'),nls_charset_id('AL32UTF8'))
10         columns
11           id          VARCHAR2(32) path '@id'
12         , englishName VARCHAR2(32) path '@englishName'
13         , frenchName  VARCHAR2(32) path '@frenchName'
14         , status      VARCHAR2(6)  path '@status'
15         , codes       XMLType      path 'code'
16       ) x1
17     , XMLTable(
18         '/code'
19         passing x1.codes
20         columns
21           codeId          VARCHAR2(32) path '@id'
22         , codeEnglishName VARCHAR2(32) path '@englishName'
23         , codeStatus      VARCHAR2(6)  path '@status'
24         , code            NUMBER       path '@code'
25       ) x2
26  ;
ID                               ENGLISHNAME                      FRENCHNAME                       STATUS CODEID                           CODEENGLISHNAME                  CODESTATUS       CODE
00000000000001000                System Role                                                       Enable 00000000000000306                Helpdesk                         Enable              1
00000000000001000                System Role                                                       Enable 000000000000000307               Reviewer                         Enable              2
00000000000001000                System Role                                                       Enable 00000000000000308                Administrator                    Enable              3
00000000000002000                Country                                                           Enable 000000000000002004               AFGHANISTAN                      Enable              4
00000000000002000                Country                                                           Enable 000000000000002008               ALBANIA                          Enable              8
00000000000002000                Country                                                           Enable 000000000000002010               ANTARCTICA                       Enable             10
6 rows selected