Copyright © 2004 Pearson Education, Inc.

Copyright © 2004 Pearson Education, Inc.

Chapter 26

XML and Internet Databases

Slide 26-3Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

XML Hierarchical (Tree) Data Model

Slide 26-4Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

XLM Documents, DTD, and XML Schema

Well-Formed and Valid XML Documents and XML DTD

XML Schema

Slide 26-5Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

XML Documents and Databases

Approaches to Storing XML DocumentsExtracting XML Documents from

Relational DatabasesBreaking Cycles to Convert Graphs into

TreesOther Steps for Extracting XML

Documents from Databases

Slide 26-6Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

XML Query

XPath: Specifying Path Expressions in XML

XQuery: Specifying Queries in XML

Slide 26-7Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

Summary