postgresql

from The Free On-line Dictionary of Computing (8 July 2008)
PostgreSQL

   <database> /'post-gres-kyu-el/ An enhancement of the
   {POSTGRES} {database} system.

   PostgreSQL is an advanced {relational database management
   system} with some {object oriented} approaches.  PostgreSQL is
   developed and distributed as {free software}, and while
   retaining its freedom it remains technically and featurewise a
   worthy competitor to even the most advanced commercial
   alternatives.

   It was also one of the first databases to offer {MVCC} as
   opposed to {row-level locking} or {table locking}, thereby
   greatly improving multi-user performance.

   PostgreSQL implements an extended subset of {ANSI} {SQL} and
   runs on many {platforms}.  It also has {interfaces} to many
   different {programming languages} and database {protocols},
   like {ODBC} and {JDBC}.

   (http://postgresql.org/).

   (1999-09-18)