Pl/sql xml help

Question

i am executing the following pl/sql block an getting error
DECLARE
ERROR at line 1:
ORA-01405: fetched column value is NULL
DECLARE
l_bfile BFILE;
l_clob CLOB;
l_parser dbms_xmlparser.Parser;
l_doc dbms_xmldom.DOMDocument;
l_nl dbms_xmldom.DOMNodeList;
l_n dbms_xmldom.DOMNode;
l_temp VARCHAR2(1000);
TYPE tab_type IS TABLE OF profile%ROWTYPE;
t_tab tab_type := tab_type();
p_open_close boolean default false;
BEGIN
dbms_output.put_line('opening xml file');
l_bfile := BFileName('/opt/sqlutil', 'test.xml');
dbms_output.put_line('xml file opened');
dbms_lob.createtemporary(l_clob, cache=>FALSE);
dbms_output.put_line('created temp');
if not p_open_close then
dbms_output.put_line('file closed now opening');
dbms_lob.fileopen(l_bfile, dbms_lob.lob_readonly);
end if;
dbms_output.put_line('file opened');
dbms_lob.loadFromFile(dest_lob => l_clob,
src_lob => l_bfile,
amount => dbms_lob.getLength(l_bfile));
dbms_output.put_line('file loaded');
dbms_lob.close(l_bfile);
dbms_output.put_line('file closed');
-- make sure implicit date conversions are performed correctly
-- dbms_session.set_nls('NLS_DATE_FORMAT','''DD-MON-YYYY''');
-- Create a parser.
l_parser := dbms_xmlparser.newParser;
-- Parse the document and create a new DOM document.
dbms_xmlparser.parseClob(l_parser, l_clob);
l_doc := dbms_xmlparser.getDocument(l_parser);
-- Free resources associated with the CLOB and Parser now they are no longer needed.
dbms_lob.freetemporary(l_clob);
dbms_xmlparser.freeParser(l_parser);
-- Get a list of all the EMP nodes in the document using the XPATH syntax.
l_nl := dbms_xslprocessor.selectNodes(dbms_xmldom.makeNode(l_doc),'/Member');
-- Loop through the list and create a new record in a tble collection
-- for each Member record.
dbms_output.put_line('Length of xml='||dbms_xmldom.getLength(l_nl));
/* FOR cur_emp IN 0 .. dbms_xmldom.getLength(l_nl) - 1 LOOP
l_n := dbms_xmldom.item(l_nl, cur_emp);
dbms_output.put_line('got xml node');
t_tab.extend;
-- Use XPATH syntax to assign values to he elements of the collection.
dbms_xslprocessor.valueOf(l_n,'USI/text()',t_tab(t_tab.last).ep_ID );*/
/* dbms_xslprocessor.valueOf(l_n,'ENAME/text()',t_tab(t_tab.last).ename);
dbms_xslprocessor.valueOf(l_n,'JOB/text()',t_tab(t_tab.last).job);
dbms_xslprocessor.valueOf(l_n,'MGR/text()',t_tab(t_tab.last).mgr);
dbms_xslprocessor.valueOf(l_n,'HIREDATE/text()',t_tab(t_tab.last).hiredate);
dbms_xslprocessor.valueOf(l_n,'SAL/text()',t_tab(t_tab.last).sal);
dbms_xslprocessor.valueOf(l_n,'COMM/text()',t_tab(t_tab.last).comm);
dbms_xslprocessor.valueOf(l_n,'DEPTNO/text()',t_tab(t_tab.last).deptno);*/
-- END LOOP;
-- Insert data into the real EMP table from the table collection.
-- Form better performance multiple collections should be used to allow
-- bulk binding using the FORALL construct but this would make the code
-- too long-winded for this example.
/* FOR cur_emp IN t_tab.first .. t_tab.last LOOP
dbms_output.put_line(t_tab(cur_emp).EBCP_USI_ID);*/
/*INSERT INTO emp
(empno,
ename,
job,
mgr,
hiredate,
sal,
comm,
deptno)
VALUES
(t_tab(cur_emp).empno,
t_tab(cur_emp).ename,
t_tab(cur_emp).job,
t_tab(cur_emp).mgr,
t_tab(cur_emp).hiredate,
t_tab(cur_emp).sal,
t_tab(cur_emp).comm,
t_tab(cur_emp).deptno);*/
--END LOOP;
-- COMMIT;
-- Free any resources associated with the document now it
-- is no longer needed.
dbms_xmldom.freeDocument(l_doc);
EXCEPTION
WHEN OTHERS THEN
dbms_lob.freetemporary(l_clob);
dbms_xmlparser.freeParser(l_parser);
dbms_xmldom.freeDocument(l_doc);
END;
/

Answer 1

You have an exception section at the end that should catch all exceptions and you are not re-rasing the error from that exception block. How is the error being raised?
EXCEPTION
    WHEN OTHERS THEN
        dbms_lob.freetemporary(l_clob);
        dbms_xmlparser.freeParser(l_parser);
        dbms_xmldom.freeDocument(l_doc);
END;?
In any case, remove all exception handling and run it again. note the line numbers in the code that the error message displays and look at that line to see what might be wrong.