Tempore 23:19:38, die Monday 28 February 2005 AD, hinc in foro {microsoft.public.xsl} scripsit Andreas Ek <google@a...>:

> I would like to reduce duplicate nodes in my XML-source.

>
> I would like to "optimize" this to something like:
> Just like som kind of group by in SQL ;-)

Hi,

If you only need optimization for one level you can use simple grouping techniques in XSLT1.0; if you need a more universally working solution, let us know.

Here's a working sample using the muenchian grouping technique:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes" method="xml" />

<xsl:key name="Paper" match="Paper" use="Code"/>

<xsl:template match="Root">
	<xsl:apply-templates select="Paper[generate-id()=generate-id(key('Paper',Code))]"/>
</xsl:template>

<xsl:template match="Paper">
	<xsl:copy>
			<xsl:copy-of select="Code | key('Paper',Code)/Price"/>
	</xsl:copy>
</xsl:template>

</xsl:stylesheet>




regards,
-- 
Joris Gillis (http://www.ticalc.org/cgi-bin/acct-view.cgi?userid=38041)
"Et ipsa scientia potestas est"  - Francis Bacon , Meditationes sacrae