Include all xmlattributes even if they are null values

Question

Hello,
Is there a way to include all null xmlattributes even if they are null? I found one way by doing the following pasted code. But as you can see if you ahve a lot of attributes to do this fix in the code will get pretty ugly.
insertchildxml(
decode(nvl(activity_record.destination_id, 0), 0,
xmlelement("Destination",
xmlattributes(activity_record.dest_state as "state",
'' as "country",
activity_record.dest_splc as "SPLC",
activity_record.dest_city as "city")
xmlelement("Destination",
xmlattributes(activity_record.shipto_state as "state",
'' as "country",
null as "SPLC",
activity_record.shipto_city as "city")
'Destination[not(@SPLC)]',
'@SPLC',
NULL)

Answer 1

i do not fully understand that you want
but you may use cursor like follow
create table txmlgen as
select 1 id, 2 col from dual union all
select 2 id, null col from dual union all
select null id, 2 col from dual
DECLARE
  ctx     NUMBER; 
  xmldoc  CLOB;
  refcur  SYS_REFCURSOR;
BEGIN
  DBMS_LOB.createtemporary(xmldoc, TRUE);
  for rec in (select dummy d from dual)
  loop 
    OPEN refcur FOR 'SELECT id, col, :1 as d FROM txmlgen' USING rec.d;
    ctx := DBMS_XMLGEN.newContext(refcur);
    dbms_xmlgen.setRowSetTag(ctx, 'DummySet');
    DBMS_XMLGEN.setRowTag(ctx, 'Dummy');
    DBMS_XMLGEN.setNullHandling(ctx, dbms_xmlgen.EMPTY_TAG);
    DBMS_XMLGEN.getXML(ctx, xmldoc);
    DBMS_OUTPUT.put_line(xmldoc);
  end loop;
  DBMS_LOB.freetemporary(xmldoc);
  CLOSE refcur;
  DBMS_XMLGEN.closeContext(ctx);
END;
<?xml version="1.0"?>
<DummySet>
<Dummy>
  <ID>1</ID>
  <COL>2</COL>
  <D>X</D>
</Dummy>
<Dummy>
  <ID>2</ID>
  <COL/>
  <D>X</D>
</Dummy>
<Dummy>
  <ID/>
  <COL>2</COL>
  <D>X</D>
</Dummy>
</DummySet>