WriteToFile(doc DOMDocument,File varchar2) error-Urgent reply needed

Question

The problem description in our environment:-
A xmldom package in the oracle 8.1.7 is trying to create an xml file from a DOMdocument. We are creating this DOMdocument by using an xmlparser. The input to the xmlparser is a file on the unix space.We are able to read the values ,display them. The error happens when the writeToFile method is used to update the xml file after changing the node values in the dom document. The environment seems to be okay or is there any problem with it.
To check our logic, a sample code from the web page http://www.akadia.com/services/ora_gen_xml.html was run.It gave the same error description(ORA-20000).It had also used the same function and the error occured at the same line number.The code from the web page reads as:-
DECLARE
doc sys.xmldom.DOMDocument;
main_node sys.xmldom.DOMNode;
root_node sys.xmldom.DOMNode;
user_node sys.xmldom.DOMNode;
item_node sys.xmldom.DOMNode;
root_elmt sys.xmldom.DOMElement;
item_elmt sys.xmldom.DOMElement;
item_text sys.xmldom.DOMText;
CURSOR get_users(p_deptno NUMBER) IS
SELECT empno
, ename
, deptno
, rownum
FROM emp
WHERE deptno = p_deptno;
BEGIN
doc := sys.xmldom.newDOMDocument;
main_node := sys.xmldom.makeNode(doc);
root_elmt := sys.xmldom.createElement(
doc
, 'EMPSET'
root_node := sys.xmldom.appendChild(
main_node
, sys.xmldom.makeNode(root_elmt)
FOR get_users_rec IN get_users(10) LOOP
item_elmt := sys.xmldom.createElement(
doc
, 'EMP'
sys.xmldom.setAttribute(
item_elmt
, 'num'
, get_users_rec.rownum
user_node := sys.xmldom.appendChild(
root_node
, sys.xmldom.makeNode(item_elmt)
item_elmt := sys.xmldom.createElement(
doc
, 'EMP_NO'
item_node := sys.xmldom.appendChild(
user_node
, sys.xmldom.makeNode(item_elmt)
item_text := sys.xmldom.createTextNode(
doc
, get_users_rec.empno
item_node := sys.xmldom.appendChild(
item_node
, sys.xmldom.makeNode(item_text)
END LOOP;
sys.xmldom.writeToFile(doc , '/user/sb8066\docSample.xml');
sys.xmldom.freeDocument(doc);
END;
The table emp was created with values in it.
Oracle error code:-
ORA-20000: An internal error has occurred: Permission denied
ORA-06512: at "SYS.XMLDOM", line 37
ORA-06512: at "SYS.XMLDOM", line 1784
ORA-06512: at line 61
The priveleges that were required for the above code were:-
GRANT javauserpriv to scott;
GRANT javasyspriv to scott;
GRANT EXECUTE ON xmldom TO scott;
These were also existing for our code and database user.NO clue is there about any possible environmental setting errors.
This code was trying to do the same job that we did but created a document object and not used an existing document object(from a parsing operation).Please advice about possible solutions.It is urgent.
with Regards
gopal

Answer 1

Hai kevin
I tried both of what you have said .I had also some suggestions from an oracle dba.Can you please help me any idea you have about it.It's regarding the encoding of the xml file.The suggestion was:-I have enclosed the my try for the first solution he suggested.
"ora-2000 is a very generic error ( mostly with intermedia/text/context/apps)
but may occur in regular stuff tooo..
in MOST OF CASES, it does not have any INDIVIDUAL IMPORTANCE at all.
its is resultant of ANOTHER ERROR.
in your case it is
ORA-06512 which is numeric or value error.
somedata is not GOOOD or unwanted character in unwanted place.
so these would be my LOOKOUTS (though, it may not relevent, as my knowledge on XML is very less.
I DONT DO ANY DEVELOPMENT at all. But just support lots n lots n lotsa developers).
1. as per your posting,
> > > sys.xmldom.writeToFile(doc ,
--->-- > > > '/user/temp\docSample.xml');
> > > sys.xmldom.freeDocument(doc);
in general terms, this would be wierd naming(line 2).
for unix '/user/temp/docsample' should do
(beware of file system permissions and case sensitivity in UNIX)
for windows '\usr\temp\docsample' should be used.
except IF U ARE USING UNC / MAPPED DRIVES ( THERE IS A SPECIAL CONSIDERATION
TO USE directory/direcotry\filname..THAT IS DIFFERENT CASE).
check this ( this may lead to error PERMISSION DENIED ( the clasical words from UNIX)
2. to deal with ora-6512, this may posssibly be th reason.
The default character set for XML is UTF8 - special characters indicated would
have an ASCII value > 127. Any character with an ASCII value > 128 is
interpreted as being the leading byte of a multi-byte character in UTF8.
To get around this you need to explicitly specify the character set you are
using. For example:
<?xml version="1.0" encoding="ISO-8859-1" ?>
This tells the XML parser to read the file as ISO-8859-1. If you are using
another character set, substitute the ISO name of the character set in this
line."
Kamal , i tried giving the '/' slash instead of '\' .The oracle reported a error,description as follows.
63 sys.xmldom.writeToFile(doc , '/user/temp/docSample.xml',sys.xmldom.getCharset(doc));
64 sys.xmldom.freeDocument(doc);
65 END;
66 /
UTF8
DECLARE
ERROR at line 1:
ORA-20000: An internal error has occurred: No such file or directory
ORA-06512: at "SYS.XMLDOM", line 37
ORA-06512: at "SYS.XMLDOM", line 1826
ORA-06512: at line 63
It reported error and when i revert back to the previously used slash,it had the old error.You must have read the dba's suggestions.Do you know about how to go about this.Anyway thaks for the help.Will be waiting for your advice.
The UTF8 ouput you must be seeing is the document's charset after me setting it,previously i tried to get the default value after parsing ,it had the same report.
regards
gopal