|Oracle® Database Semantic Technologies Developer's Guide
11g Release 2 (11.2)
Part Number E11828-08
Oracle Database Semantic Technologies Developer's Guide provides usage and reference information about Oracle Database Enterprise Edition support for semantic technologies, including storage, inference, and query capabilities for data and ontologies based on Resource Description Framework (RDF), RDF Schema (RDFS), and Web Ontology Language (OWL). The Semantic Technologies feature is licensed with the Oracle Spatial option to Oracle Database Enterprise Edition, and it requires the Oracle Partitioning option to Oracle Database Enterprise Edition.
Note:You must perform certain actions and meet prerequisites before you can use any types, synonyms, or PL/SQL packages related to Oracle semantic technologies support. These actions and prerequisites are explained in Section A.1.
This guide is intended for those who need to use semantic technology to store, manage, and query semantic data in the database.
You should be familiar with at least the main concepts and techniques for the Resource Description Framework (RDF) and the Web Ontology Language (OWL).
Our goal is to make Oracle products, services, and supporting documentation accessible to all users, including users that are disabled. To that end, our documentation includes features that make information available to users of assistive technology. This documentation is available in HTML format, and contains markup to facilitate access by the disabled community. Accessibility standards will continue to evolve over time, and Oracle is actively engaged with other market-leading technology vendors to address technical obstacles so that our documentation can be accessible to all of our customers. For more information, visit the Oracle Accessibility Program Web site at
Accessibility of Code Examples in Documentation
Screen readers may not always correctly read the code examples in this document. The conventions for writing code require that closing braces should appear on an otherwise empty line; however, some screen readers may not always read a line of text that consists solely of a bracket or brace.
Accessibility of Links to External Web Sites in Documentation
This documentation may contain links to Web sites of other companies or organizations that Oracle does not own or control. Oracle neither evaluates nor makes any representations regarding the accessibility of these Web sites.
Access to Oracle Support
Oracle customers have access to electronic support through My Oracle Support. For information, visit
http://www.oracle.com/support/contact.html or visit
http://www.oracle.com/accessibility/support.html if you are hearing impaired.
For an excellent explanation of RDF concepts, see the World Wide Web Consortium (W3C) RDF Primer at
For information about OWL, see the OWL Web Ontology Language Reference at
The following text conventions are used in this document:
|boldface||Boldface type indicates graphical user interface elements associated with an action, or terms defined in text or the glossary.|
|italic||Italic type indicates book titles, emphasis, or placeholder variables for which you supply particular values.|
||Monospace type indicates commands within a paragraph, URLs, code in examples, text that appears on the screen, or text that you enter.|