Book Image

Managing Multimedia and Unstructured Data in the Oracle Database

By : MARCEL KRATOCHVIL
Book Image

Managing Multimedia and Unstructured Data in the Oracle Database

By: MARCEL KRATOCHVIL

Overview of this book

Multimedia is the new digital frontier. Managers, software architects, administrators and developers need to fully comprehend this exciting new technology as its widespread use and acceptance cannot be ignored any longer."Managing Multimedia and Unstructured Data in the Oracle Database" will give you a complete understanding of how to manage all data, especially multimedia. You will learn all the latest terminology, how to set up a database, load digital objects, search on them and even how to sell them. Whether you are a manager or database administrator, this book will give you the knowledge you need to take control of this rapidly growing and industry- changing technology. Technology which is transforming our lives.Starting with the basic principles of unstructured data and detailing the concepts behind multimedia warehouses and digital asset management systems, this book will describe how to load this data, search against it, display it intelligently, and deliver it to customers and users. Learn how all these concepts work within the Oracle 11g R2 database environment and how to tune the database effectively to manage it.Begin to learn about this new and exciting field and use it to give your business a competitive edge or give yourself the ability to take a leadership role in this exciting new computing genre.
Table of Contents (22 chapters)
Managing Multimedia and Unstructured Data in the Oracle Database
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Oracle Securefile architecture


In Oracle 11g, Oracle rearchitected the management of lobs. This new structure is called SECUREFILES. The storage structure also included a number of new optimizations and security features. It is anticipated that the older storage method (now called BASICFILES) will be made obsolete in the next major release.

The storage architecture also introduced a new method for indexing the lobs, enabling faster access to parts of it. Reading and writing were also improved.

The following sections describe some of the key storage options a database administrator might want to consider when setting up tables that hold unstructured data. Example table creation statements are included at the end of the chapter.

Enabling storage in row

This option is useful for small lobs. These are ones that are less than 4000 bytes. When this option is enabled, Oracle stores the first 4000 bytes in the row just like if the column was a RAW (4000) one. If the lob is larger than 4000 bytes, the...