Urgent!! Urgent!! Slow in XML extraction.

Question

Hi,
I am using 8.1.7 dB. I have prob in performance, while extractging. I have XML doc like the following.
- <rowOfCells>
- <cellValueList>
<cellValue>Class I Senior Notes</cellValue>
<cellValue>0</cellValue>
<cellValue>0.0054</cellValue>
<cellValue>48164975</cellValue>
<cellValue>4.18</cellValue>
<cellValue>304557600</cellValue>
<cellValue>181835025</cellValue>
</cellValueList>
</rowOfCells>
- <rowOfCells>
- <cellValueList>
<cellValue>Class I Senior Notes</cellValue>
<cellValue>0</cellValue>
<cellValue>0.0054</cellValue>
<cellValue>49105975</cellValue>
<cellValue>4.33</cellValue>
<cellValue>307906256</cellValue>
<cellValue>180894025</cellValue>
</cellValueList>
</rowOfCells>
Please noet that the number of "cellValue" tags may vary. I am using the code like the following to extract and make it as a record.
l_row_node_list := xslProcessor.selectNodes (p_node,'/rowOfCells/cellValueList' );
FOR i IN 0 .. XMLDOM.getLength (l_row_node_list) - 1
LOOP
l_row_node := XMLDOM.item (l_row_node_list, i);
l_col_node_list := xslProcessor.selectNodes (l_row_node,'cellValue' );
     FOR j IN 0 .. XMLDOM.getLength (l_col_node_list) - 1
LOOP
     l_grandChildArray(j+1) := SUBSTR(XMLDOM.getNodeValue( XMLDOM.getFirstChild(XMLDOM.item (l_col_node_list, j) ) ),1,100);
     END LOOP;
-- Make as record structure.
l_generic_rec.col1 := l_grandChildArray(1);
     l_generic_rec.col2 := l_grandChildArray(2);
     l_generic_rec.col3 := l_grandChildArray(3);
     l_generic_rec.col4 := l_grandChildArray(4);
l_generic_rec.col5 := l_grandChildArray(5);
     l_generic_rec.col6 := l_grandChildArray(6);
     l_generic_rec.col7 := l_grandChildArray(7);
     l_generic_rec.col8 := l_grandChildArray(8);
END LOOP;
This works fine for me, but it takes 5 minutes to extract for 1200 cellValueList. I want to speed up this process.Is there any way i can modify this code or use some other way to speed up the process of extraction?
Advanced Thanks
Ramesh

Answer 1

Your code using the DOM APIs looks fine. You can change 'cellValue' to '/cellValue' and see if there will be any improvement:
l_col_node_list := xslProcessor.selectNodes (l_row_node,'/cellValue' );
Or you can use the SAX streaming method to get the data. Would you like to send the sample data?