XQuery to Order elements(xi:include) in an xml file

Question

Do any one know how to order elements in XML file. I have a course XML file and my course XML file has 5 units which are referenced as xi:include .

Each unit in turn has a unitsequencenumber element. I need to have my course XML returned with unit references ordered based on unitsequencenumber .

Answer 1

Use order by :

for $e in doc('filename.xml')/unit
order by $e/unitsequencenumber
return $e