Performance Problem..DBMS_XMLStore or SQL Loader

Question

Hi All,
I have implemented the insertion of data using the following method but it's taking very long.
Once XML and XSL files are there in mapped 'Directory_Path'....
BEGIN
SELECT directory_name INTO v_directory_name
FROM all_directories
WHERE owner = 'SYS'
AND directory_name = 'Directory_Path';
END;
xmldata1 := XMLTYPE(BFILENAME(v_directory_name, 'temp_xml.xml'), nls_charset_id('UTF8'));
xmldata2 := XMLTYPE(BFILENAME(v_directory_name, 'temp_xml.xsl'), nls_charset_id('UTF8'));
--Open a new context, required for these procedures
v_context := DBMS_XMLSTORE.newContext('TEMP_XML');
v_rows := DBMS_XMLStore.insertXML(
v_context,
XMLType.transform(xmldata1, xmldata2));
-- Close the context
DBMS_XMLStore.closeContext(v_context);
END;
May be I am converting data from BFILE to XMLType. But XMLType.transform(xmldata1, xmldata2) accepts XMLType data only.
Or May be this approach where I am not giving the column names explicitly..
Earlier I was loading the transformed XML file(With ROWSET ROW Format) in the the 'Directory_Path' and loading the data as
DECLARE
insCtx DBMS_XMLSTORE.ctxType;
rows NUMBER;
v_directory_name VARCHAR2(300);
src_file BFILE ;
BEGIN
BEGIN
SELECT directory_name INTO v_directory_name
FROM all_directories
WHERE owner = 'SYS'
AND directory_name = 'Directory_Path';
END;
src_file := BFILENAME(v_directory_name, XMLFILE.xml');
insCtx := DBMS_XMLSTORE.newContext( 'TABLE_NAME'); -- Get saved context
DBMS_XMLSTORE.clearUpdateColumnList(insCtx); -- Clear the update settings
-- Set the columns to be updated as a list of values
DBMS_XMLSTORE.setUpdateColumn(insCtx, 'COLUMN1');
DBMS_XMLSTORE.setUpdateColumn(insCtx, 'COLUMN2');
-- Insert the doc.
rows := DBMS_XMLSTORE.insertXML(insCtx, xmltype(src_file,nls_charset_id('AL32UTF8')));
DBMS_OUTPUT.put_line(rows || ' rows inserted.');
-- Close the context
DBMS_XMLSTORE.closeContext(insCtx);
END;
This was happening in a fraction of a second.
But for thousands of XMLs we can't manually generate the Transformed XMLs even if there is a single type of XSL for all those.
AM I MISSING SOMETHING VERY ELEMENTARY OVER HERE???
(I didn't meant to shout by putting in CAPS but highlight it so that it's not missed..Apologies )
The new suggestion being given is PARSE XML FILE into PIPE DELIMITED FORMAT FILE and LOAD that data through SQL LOADER
Personally I don't think it would be better when Oracle is giving us an inbuilt feature.
PLEASE HELP....
How can I improve this. I really think I am taking some wrong step somewhere.....
Regards.....

Answer 1

Thanks A_NON,
But I actually did load within 4 seconds using the below approach without registering as mentioned here.
xmldata1 :=
XMLTYPE (BFILENAME (v_directory_name,
p_xml_file_nme
NLS_CHARSET_ID ('UTF8')
xmldata2 :=
XMLTYPE (BFILENAME (v_directory_name,
p_xsl_file_nme
NLS_CHARSET_ID ('UTF8')
SELECT XMLTRANSFORM (xmldata1, xmldata2) AS temp2
INTO temp2
FROM DUAL;
And then
insCtx := DBMS_XMLSTORE.newContext( 'TABLE_NAME'); -- Get saved context
DBMS_XMLSTORE.clearUpdateColumnList(insCtx); -- Clear the update settings
-- Set the columns to be updated as a list of values
DBMS_XMLSTORE.setUpdateColumn(insCtx, 'COLUMN1');
DBMS_XMLSTORE.setUpdateColumn(insCtx, 'COLUMN2');
I will try to optimise it more now. But 4 seconds is beautiful you see. :-)
Thanks for All the help A_NON and I think I have learnt some Oracle XML DB over here.
Hope to answer some basic questions too in future.. :-)
Regards....