I thought I share this one, just in case someone needs to call BaseX (xquery the database in this example) from xslt: Greets, Raymond Example: <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="2.0" exclude-result-prefixes="xsl basex" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:basex="java:org.basex.server.ClientSession"> <!-- create a new ClientSession object (only static methods can be called directly) --> <xsl:variable name="session" select="basex:new('localhost', 1984, 'admin','admin')"/> <xsl:template match="/"> <!-- putting the xquery in a variable makes it easier to work with quotes or xpath results from the input xml --> <xsl:variable name="query"><xsl:text>XQUERY for $doc in db:open("SampleDB") return $doc</xsl:text></xsl:variable> <example> <!-- execute the query with a BaseX command --> <xsl:value-of select="basex:execute($session,string($query))"/> </example> </xsl:template> </xsl:stylesheet>