How to extract XML with namespace?

Question

Hi all,
Below is the XML i have :
<?xml version="1.0" encoding="UTF-8" ?>
- <Transaction xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.test.com/Support/Services/test1/2012" xsi:schemaLocation="http://schemas.test.com/Support/Services/test1/2012 Support.test1.v1.xsd">
- <Request>
<Memid>10</Memid>
<Actid>32</Actid>
<Pax>3</Pax>
<Flt>2012-DEC-10</Flt>
<Username>WebUserNameTest</Username>
</Request>
<Request>
<Memid>1</Memid>
<Actid>3</Actid>
<Pax>2</Pax>
<Flt>2012-DEC-12</Flt>
<Username>WebUserNameTest</Username>
</Request>
</Transaction>
I want to extract the element values :
The below code will help me when i have no namespace , what must be done in order to work with namespace and etract element value
v_string_xml :=
' //Request[' || TO_CHAR (counter_xml) || ']/Memid/text()';
v_ssp_table (v_ssp_table.COUNT).memid :=
p_xml_in.EXTRACT (v_string_xml).getnumberval ();
v_string_xml :=
'//Request[' || TO_CHAR (counter_xml) || ']/Actid/text()';
v_ssp_table (v_ssp_table.COUNT).actid :=
p_xml_in.EXTRACT (v_string_xml).getnumberval ();
v_string_xml :=
'//Request['
|| TO_CHAR (counter_xml)
|| ']/Pax/text()';
v_ssp_table (v_ssp_table.COUNT).pax :=
p_xml_in.EXTRACT (v_string_xml).getnumberval ();
v_string_xml :=
'//Request[' || TO_CHAR (counter_xml) || ']/Flt/text()';
v_ssp_table (v_ssp_table.COUNT).flt :=
p_xml_in.EXTRACT (v_string_xml).getstringval ();
v_string_xml :=
'//Request['
|| TO_CHAR (counter_xml)
|| ']/Username/text()';
v_ssp_table (v_ssp_table.COUNT).username :=
p_xml_in.EXTRACT (v_string_xml).getstringval ();

Answer 1

declare
  v_xml xmltype := xmltype( '<?xml version="1.0" encoding="UTF-8" ?>
<Transaction xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.test.com/Support/Services/test1/2012" xsi:schemaLocation="http://schemas.test.com/Support/Services/test1/2012 Support.test1.v1.xsd">
<Request>
<Memid>10</Memid>
<Actid>32</Actid>
<Pax>3</Pax>
<Flt>2012-DEC-10</Flt>
<Username>WebUserNameTest</Username>
</Request>
<Request>
<Memid>1</Memid>
<Actid>3</Actid>
<Pax>2</Pax>
<Flt>2012-DEC-12</Flt>
<Username>WebUserNameTest</Username>
</Request>
</Transaction>' );
begin
  for r_xml in ( select *
                 from xmltable( xmlnamespaces( default 'http://schemas.test.com/Support/Services/test1/2012' )
                               , '/Transaction/Request'
                               passing v_xml
                                 columns memid number path 'Memid'
                                       , actid number path 'Actid'
                                       , pax number path 'Pax'
                                       , flt varchar2(100) path 'Flt'
                                       , username varchar2(100) path 'Username'
  loop
    dbms_output.put_line( r_xml.memid );
    dbms_output.put_line( r_xml.actid );
    dbms_output.put_line( r_xml.pax );
    dbms_output.put_line( r_xml.flt );
    dbms_output.put_line( r_xml.username );
  end loop;
end;