Attribute Constructors

• List books published by Addison-Wesley after 1993, including their year and title:

  <bib>
     FOR $b IN document("http://www.bn.com")/bib/book
     WHERE $b/publisher = "Addison-Wesley" AND $b/@year > 1993
     RETURN
      <book year = $b/@year>
       $b/title
      </book>
  </bib>
  

• This is not well-formed XML!

Adapted from XML Query Use Cases