October 2000
Intermediate to advanced
812 pages
21h 21m
English
Content preview from Building Oracle XML Applications
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Chapter 8. Publishing Data with XSQL Pages
Once you discover the advantages of working with database information in XML, you’ll find yourself building XML datagrams from SQL statements for many common tasks. In addition to providing XML components that simplify this job for developers, Oracle has anticipated a much broader interest in serving database-driven XML, and has provided an easier route for non-programmers. Using Oracle’s XSQL Pages facility, anyone who is familiar with SQL can quickly and easily build XML data pages from easy-to-author templates.
Introduction to XSQL Pages
XSQL pages are templates in
*.xsql
files that allow
anyone familiar with SQL to declaratively:
Assemble dynamic XML “data pages” based on one or more parametrized SQL queries
Transform a data page to produce a final result in any desired XML, HTML, or text-based format using an associated XSLT stylesheet
These templates are processed by a common XSQL page processor engine
shared by the XSQL Servlet, the XSQL command-line utility, and the
programmatic API for processing XSQL pages called the
XSQLRequest class, as shown in Figure 8.1.
Figure 8-1. Overview of XSQL Pages architecture
As this chapter will illustrate, you can accomplish surprising things in a declarative way by combining SQL, XML, and XSLT.
Tip
As part of the Oracle XML Developer’s Kit, Oracle XSQL Pages is included in Oracle JDeveloper 3.1 and ...
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