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Chapter 26

Chapter 26. XML and Internet Databases. FIGURE 26.1 Representing semistructured data as a graph. FIGURE 26.2 Part of an HTML document representing unstructured data. FIGURE 26.3 A complex XML element called <projects>. FIGURE 26.4 An XML DTD file called projects.

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Chapter 26

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  1. Chapter 26 XML and Internet Databases

  2. FIGURE 26.1Representing semistructured data as a graph.

  3. FIGURE 26.2Part of an HTML document representing unstructured data.

  4. FIGURE 26.3A complex XML element called <projects>.

  5. FIGURE 26.4An XML DTD file called projects.

  6. FIGURE 26.5An XML schema file called company.

  7. FIGURE 26.5 (continued)An XML schema file called company.

  8. FIGURE 26.5 (continued)An XML schema file called company.

  9. FIGURE 26.5 (continued)An XML schema file called company.

  10. FIGURE 26.6An ER schema diagram for a simplified UNIVERSITY database.

  11. FIGURE 26.7Subset of the UNIVERSITY database schema needed for XML document extraction.

  12. FIGURE 26.8Hierarchical (tree) view with COURSE as the root.

  13. FIGURE 26.9XML schema document with COURSE as the root.

  14. FIGURE 26.10Hierarchical (tree) view with STUDENT as the root.

  15. FIGURE 26.11XML schema document with STUDENT as the root.

  16. FIGURE 26.12Hierarchical (tree) view with SECTION as the root.

  17. FIGURE 26.13Converting a graph with cycles into a hierarchical (tree) structure.

  18. FIGURE 26.14Some examples of XPath expressions on XML documents that follow the XML schema file COMPANY in Figure 26.5.

  19. FIGURE 26.15Some examples of XQuery queries on XML documents that follow the XML schema file COMPANY in Figure 26.5.

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