Hi Christophe, It's possible to query Basex directly from XSLT. However this can be cumbersome because you need a lot of escapes to correctly execute the query. If you only need to query a relative small XML you can avoid this by getting by getting the complete XML and use a normal xpath in the xslt (in stead of xquery): 1) First create a function in a separate XSLT: <?xml version="1.0"?> <xsl:stylesheet version="2.0" exclude-result-prefixes="xs basex saxon" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:functx="http://www.functx.com" xmlns:org="http://www.example.org" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:saxon="http://saxon.sf.net/" xmlns:basex="java:org.basex.server.ClientSession"> <xsl:function name="org:getBasexDoc"> <xsl:param name="database"/> <xsl:variable name="session" select="basex:new('localhost', 1984, 'admin','admin')"/> <xsl:variable name="query"> <xsl:text>XQUERY for $doc in db:open('</xsl:text><xsl:value-of select="$database"/><xsl:text>') return $doc</xsl:text> </xsl:variable> <xsl:variable name="result"> <xsl:value-of select="basex:execute($session,string($query))"/> </xsl:variable> <xsl:copy-of select="saxon:parse($result)"/> </xsl:function> </xsl:stylesheet> 2) Include the stylesheet in you main stylesheet: xsl:include href="basex.xsl"/> 3) Set the XML document in a variable <xsl:variable name="dbname"> <xsl:copy-of select="drs:getBasexDoc('dbname')"/> </xsl:variable> 4) Query the document with xpath <xsl:value-of select="$dbname//xpath"/> See also: https://mailman.uni-konstanz.de/pipermail/basex-talk/2013-March/004776.html Raymond