1. © 2002 by Prentice Hall 1 SI 654 Database Application Design Winter 2003 Dragomir R. Radev

2. © 2002 by Prentice Hall 2 XQuery

3. © 2002 by Prentice Hall 3 Background Successor to XML-QL, YAML, Lorel, Quilt Supported by the W3C Draft only

4. © 2002 by Prentice Hall 4 DTD

5. © 2002 by Prentice Hall 5 Sample database TCP/IP Illustrated Stevens W. Addison-Wesley 65.95 Advanced Programming in the Unix environment Stevens W. Addison-Wesley 65.95 Data on the Web Abiteboul Serge Buneman Peter Suciu Dan Morgan Kaufmann Publishers 39.95

6. © 2002 by Prentice Hall 6 Sample query { for $b in document("http://www.bn.com/bib.xml")/bib/book where $b/publisher = "Addison-Wesley“ and $b/@year > 1991 return { $b/title } }

7. © 2002 by Prentice Hall 7 Expected result TCP/IP Illustrated Advanced Programming in the Unix environment

8. © 2002 by Prentice Hall 8 Pointers and Demos http://www.w3.org/TR/xquery/ http://www.w3.org/TR/xmlquery-use- cases/ http://131.107.228.20/Default.aspx? case=XMP&example=Q1#Query http://relimo.darmstadt.gmd.de/ http://www.db.ucsd.edu/people/yanni s/XQueryTutorial.htm