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Your Oracle Knowledge With Our Special Oracle Tutorials For
Beginners  This series of Oracle tutorials provides an
introduction to Oracle for beginners. This first tutorial
explains relational theory, on which all relational databases
are built, and provides some examples so you can see how it
works in practice. Object-oriented design as it applies to
databases is also discussed briefly.  Other articles in this
series of Oracle tutorials expand on these concepts, discuss the
factors that affect SQL (and therefore database) performance and
examine the Oracle database from the point of view of the dba.
What is an Oracle database?  Oracle is an object-relational
hybrid database - a relational database with added object-
oriented features - and, since Oracle 10g, a grid-enabled
database - the ability to scale across multiple inexpensive
servers to provide more processing resources.  Each release of
the Oracle database brings new features to improve