How to preserve old dtd when using writetofile method

Question

Hi,
I have one doubt.How to preserve the dtd of xmlfile before parsing it with the xml parser for pl/sql ,write this saved dtd to the document object and use to writofile method of the dom object.If this is possible then can anyone ,please give me suggestions.
I illustrate the situation ,given below is the dtd of the file before parsing :-
<!DOCTYPE family [
<!ELEMENT family (member*)>
<!ATTLIST family lastname CDATA #REQUIRED>
<!ELEMENT member (#PCDATA)>
<!ATTLIST member memberid ID #REQUIRED>
<!ATTLIST member dad IDREF #IMPLIED>
<!ATTLIST member mom IDREF #IMPLIED>
]>
After parsing and using the writetofile method ,the dtd present below is the changed dtd of the new xml file.
<!DOCTYPE family [
<!ELEMENT member ANY>
<!ATTLIST member memberid ID >
]>
Can anyone say how to stop this.Any help would be great
Regards
gopal

Answer 1

Hi, Kiran,
As the others have said, the only way ^1^ to get the result set in any particular order is to use an ORDER BY clause.
Here's the general way to do that in SQL in case of a UNION:
WITH  union_results     AS
     select 'a' AS txt, 1 AS sort_key from DUAL
    union
     select 'd',        2             from DUAL
    union
     select 'b',        3           from DUAL
    union
     select 'c',        4           from dual
SELECT    txt
FROM       union_results
ORDER BY  sort_key
;In SQL, you can only ORDER BY expressions that arei n the SELECT clause, so to avoid displaying sort_key, the sub-query is necessary. A lot of people don't use pure SQL for this; they have their front end hide the sort_key column. In SQL*Plus, for example, you can say COLUMN sort_key NOPRINT.
^1^ There is one exception, which does NOT apply to this case, or most others. CONNECT BY, even without ORDER BY, does impose a partial ordering.