How to write xml data to a file

Question

Hi all,
We have a requirement of writing the xml data into a file in given directory in the server. Generating the xml data using the sql query below.
SELECT XMLELEMENT ("ROW",
XMLELEMENT ("CELL", xmlattributes ('EBIZCZMDL_01' AS "colname"), inventory_item_id),
XMLELEMENT ("CELL", xmlattributes ('EBIZFFMT_01' AS "COLNAME"), attribute29),
XMLELEMENT ("CELL", xmlattributes ('COMMON' AS "COLNAME"),inventory_item_id || '' || attribute29 || 'ITM')
AS "RESULT") "XMLDATA"
FROM apps.mtl_system_items_b
When we try to write the the data from this query to a file using UTL_FILE.put_line, the script gives the error
PLS-00306: wrong number or types of arguments in call to 'PUT_LINE'
If somebody can help us pls.......
Thanks in advance

Answer 1

Hi Odie,
We are looking at the xml data to be like the below:
- <xref xmlns="http://xmlns.oracle.com/xref">
- <table name="NAPP_ITEM_ITEMID">
- <columns>
<column name="EBIZFFMT_01" />
<column name="COMMON" />
<column name="EBIZQOT_01" />
<column name="EBIZCZMDL_01" />
<column name="EBIZCZGOLD_01" />
</columns>
- <rows>
- <row>
<cell colName="EBIZFFMT_01">154</cell>
<cell colName="COMMON">154811809990111362727</cell>
<cell colName="EBIZQOT_01">81</cell>
<cell colName="EBIZCZMDL_01">91</cell>
<cell colName="EBIZCZGOLD_01">991</cell>
</row>
- <row>
<cell colName="EBIZFFMT_01">180</cell>
<cell colName="COMMON">180811809990111362727</cell>
<cell colName="EBIZQOT_01">871</cell>
<cell colName="EBIZCZMDL_01">731</cell>
<cell colName="EBIZCZGOLD_01">341</cell>
</row>
</rows>
</table>
</xref>
We have managed half way trying to get the structure. As we are new to this XML Programming.
The call to dbms_xslprocessor.clob2file is within the cursor loop for the given SQL.
DECLARE
l_file_name VARCHAR2 (30);
l_file_path VARCHAR2 (200);
CURSOR xml_cur
IS
SELECT XMLELEMENT
("ROW",
XMLELEMENT ("CELL",
xmlattributes ('EBIZCZMDL_01' AS "colname"),
inventory_item_id
XMLELEMENT ("CELL",
xmlattributes ('EBIZFFMT_01' AS "COLNAME"),
attribute29
XMLELEMENT ("CELL",
xmlattributes ('COMMON' AS "COLNAME"),
inventory_item_id || '' || attribute29 || 'ITM'
) AS "RESULT"
) "XMLDATA"
FROM apps.mtl_system_items_b
WHERE attribute29 IS NOT NULL;
BEGIN
l_file_path := '/usr/tmp';
l_file_name := 'TEST_XREF4.xml';
FOR xml_rec IN xml_cur
LOOP
dbms_xslprocessor.clob2file(xml_rec.XMLDATA, l_file_path, l_file_name, nls_charset_id('UTF8') );
END LOOP;
END;
Please see the above code snippet and help us if we are doing something wrong.
Thank you