Data-mining algorithms were first embedded in the Oracle9i database in the Data
Mining Option. These were initially accessible via a Java API, but Oracle later added
a PL/SQL API.
For applications-based data mining independent of underlying database technology,
the OBI EE tools can utilize data-mining algorithms Oracle acquired with Sigma
Dynamics in 2006. This technology is known as Real-Time Decisions (RTD).
We describe OLAP and data mining in the database and Oracle??™s business intelligence
tools in the following sections.
Database Extensibility and the Data Warehouse
A growing trend in data warehousing is the storage of multiple datatypes within the
database. These extended database capabilities are described in Chapter 14, but we??™ll
quickly mention here how these options might be useful in data warehousing.
Multimedia
The Multimedia feature set (formerly knows as interMedia) opens up the possibilities
of including documents, audio, video, and some locator functions in the
warehouse. Of these, text retrieval (Oracle Text) is most commonly used in warehouses
today.
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