==Expanded QNames==
{{Mark|Updated with Version 7.2:}}
A ''QName'' can now be directly prefixed with the letter "Q" and a namespace URI in the [http://www.jclark.com/xml/xmlns.htm Clark Notation].
* <code>Q{java:java.io.FileOutputStream}new("output.txt")</code> creates a new Java file output stream
Before {{Mark|Version 7.2}}, and The syntax differed in older versions of the XQuery 3.0 specification, in which the prefixed namespace URI was quoted:
* <code><nowiki>"http://www.w3.org/2005/xpath-functions/math":pi()</nowiki></code>