??? Oracle Database 11g (released in 2007) is the current release. Many of the selftuning
and managing capabilities are further improved, especially Automatic
Memory Management, partitioning, and security. The lifecycle of database
change management is extended within Oracle??™s Enterprise Manager as Oracle
now provides improved diagnosis capabilities and linkage to Oracle Support via
a Support Workbench. This version also features improved online patching
capabilities.
Before we dive into further details, let??™s step back and look at how databases evolved,
how we arrived at the relational model, and Oracle??™s history. We??™ll then take an initial
look at Oracle database packaging and key Oracle features today.
The Evolution of the Relational Database
The relational database concept was described first by Dr. Edgar F. Codd in an IBM
research publication entitled ???System R4 Relational??? that was published in 1970.
Initially, it was unclear whether any system based on this concept could achieve
commercial success. Nevertheless, a company named Software Development Laboratories
Relational Software came into being in 1977 and then released a product
The Evolution of the Relational Database | 3
named Oracle V.
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