Oracle Corporation is the world's largest database vendor and its flagship product Oracle is the oldest SQL-based relational database.
Despite heavy competition from other vendors such as Microsoft and IBM, Oracle has maintained its lead in the enterprise database market. One reason for Oracle's success is its mature code base which has traditionally been available on a variety of platforms.
Oracle is a trademark of Oracle Corporation.
Oracle releasedFor marketing reasons RSI, as Oracle Corporation was originally known, released the first version of the Oracle software as version 2. The first copy, which did not yet have transaction support, was sold to the Wright-Patterson Air Force Base in Ohio, USA.
Oracle 3 with portable codebase, RSI renamedWith the release of this version, RSI changed its name to Oracle Corporation.
Read consistency introduced
Cluster technologyWith version 5.1 , Oracle introduces database clustering, although the technology is not yet mature.
Oracle 6: Row-level locking
Stored proceduresPL/SQL is introduced
Massively Parallel PlatformsClustering matures and expands with Oracle Parallel Server
Oracle 8iThe i is for internet, and Java makes its first appearance in the database.
oracle 10gg is for grid, the latest buzzword.