6.7. Special Oracle Features

In this section we will discuss some of the special features provided by Oracle.

6.7.1. URI Support

Oracle9i introduces new URIType object types that represent URIs (Uniform Resource Identifiers). A URI generalizes the concept of URL. A URI references not only HTML and XML documents, it also possesses “pointer” semantics to point into a document. Hence, a URI consists of two parts:

  • A URL referencing a document

  • A fragment that identifies a fragment within that document

A typical example for a URI is http://www.xml.com/xml_doc#//Customer/Address/Zip'. The part in front of the number sign (#) identifies the place of the document, while the final part references a fragment in the document. This mechanism follows the W3C ...

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