XML multiple targets problem

Question

there is an example in oracle warehouse builder user's guide how to load xml file into multiple tables (1:N relationship).
Let's have an xml file:
<orders>
<order>
<id>1</id>
<items>
<item>
<product>a</product>
</item>
</items>
</order>
</orders>
but what if one day you get an xml file where an order has no items:
<orders>
<order>
<id>10</id>
</order>
</orders>
I get an error message: ORA-20011: Error occurred while loading source XML document into the target database object XXX . Base exception: No rows to modify -- the row enclosing tag missing. Specify the correct row enclosing tag.
What I want is to load in order table one row, and no rows in items table.
The xsl for this small example that makes a problem looks like (the rest is like in oracle warehouse builder user's guide example in C appendix):
<?xml version = '1.0' encoding = 'UTF-8'?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<ROWSET>
<xsl:for-each select="orders/order/items/item">
<ROW>
<ORDER_ID>
<xsl:value-of select="../../id"/>
</ORDER_ID>
<PRODUCT>
<xsl:value-of select="product"/>
</PRODUCT>
</ROW>
</xsl:for-each>
</ROWSET>
</xsl:template>
</xsl:stylesheet>

Answer 1

Sounds like you've missed some tag from the files.
For XML processing I would look at leveraging XDB, see the post here;
http://blogs.oracle.com/warehousebuilder/2007/09/leveraging_xdb.html
Cheers
David