Oracle Database Online Documentation
10g Release 2 (10.2)
Oracle interMedia lets you write applications to manipulate images, audio, and video within the database:
You can store XML content in the database, and write applications to process it and use it as a data interchange format:
You can store unlimited amounts of text and binary data using Oracle's large object (LOB) types. The data cartridge framework lets you integrate your own complex data types into Oracle's query and index operations.
Oracle Text turns the database into a search engine. You can search for text in regular columns, for text inside various kinds of binary-format documents, and for text, tags, and attributes inside XML documents.
Oracle Ultra Search
Oracle Ultra Search, built on top of Oracle Text, lets you customize and manage a search engine for database content.
Oracle Spatial lets you store geospatial data and write mapping applications.