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XML Data Exchange: Managing One-to-One Relationships

Learn about managing one-to-one relationships in XML data exchange, including XML schema restrictions and use of XML documents and style sheets for effective data modeling.

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XML Data Exchange: Managing One-to-One Relationships

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  1. XML: Managing Data Exchange One-to-One Relationship Presented By: Dustin K. Pitts dkp@uga.edu 01/30/2006

  2. Objectives • XML Overview • One-to-One • XML Schema • Restrictions in XML Schema • XML Document • XML Style Sheet

  3. XML Overview XML Schema XML Style Sheet XML Document

  4. One-to-One • Definition • Data Model • Example in Code

  5. Data Model

  6. Where is Relationship? • Complex Type “countryDetails” • <xsd:element name="topDestination" type="destinationDetails" minOccurs="0" maxOccurs="1"/>

  7. Restrictions in XML Schema Replace Collapse Length, maxLength, minLength Order Indicators <all> <choice> <sequence>

  8. XML Document What does it do? See example code. Notice: <topDestination> has <all>

  9. XML Style Sheet What does this do? See example code. If Statement Greater than, Less than, various operators

  10. If Statement Operators

  11. Summary • XML Schema • Restrictions on XML Schema • XML Document • XML Style Sheet • If Statement

  12. Exercises • Create and XML schema to represent the most popular professors at a university. Use the replace function to replace all white space characters with spaces and set the maxLength to 15. Include first name, last name, department, and years teaching. • Using the XML schema, create and XML document and populate it with data about a university and its most popular professor. Use at least three universities and two professors at each university. • Write and XML style sheet to display the most popular professors at each school sorted by the professor names. Only list if the professor has over 3 years experience. You must use an if statement function.

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