October 2000
Intermediate to advanced
812 pages
21h 21m
English
Content preview from Building Oracle XML Applications
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Parsing XML
The Oracle XML Parser for PL/SQL provides PL/SQL developers with a set of APIs for parsing, manipulating, and transforming XML documents inside the database. As we’ll see in Chapter 6, these same APIs are available to Java programmers as well using the Oracle XML Parser for Java. As illustrated in Figure 5.1, in Oracle8i Releases 1, 2, and 3—server versions 8.1.5, 8.1.6, and 8.1.7, respectively—the Oracle XML Parser for PL/SQL is a set of PL/SQL packages that expose the underlying functionality of the XML Parser for Java. In the 8.1.7 release, the XML Parser for Java is natively compiled inside the server for better performance.
Figure 5-1. XML Parser for PL/SQL wraps the XML Parser for Java
The packages included in the Oracle XML Parser for PL/SQL are listed in Table 5.1.
Table 5-1. Key PL/SQL Packages for Working with XML
|
PL/SQL Package Name |
Description |
|---|---|
|
|
Contains datatypes, functions, and procedures for parsing XML |
|
|
Contains datatypes, functions, and procedures for creating and manipulating the members of an XML document’s object model like elements, attributes, text, comments, etc. |
|
|
Contains datatypes, functions, and procedures for transforming XML documents using XSLT stylesheets and searching an in-memory XML document using XPath expressions |
Tip
In this chapter, we build up various PL/SQL helper packages that centralize the ...
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