Postgre S Q L is a powerful, open source objectrelational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major operating systems, including Linux, UNIX AIX, BSD, HPUX, SGI IRIX, Mac OS X, Solaris, Tru64, and Windows. It is fully ACID compliant, has full support for foreign keys, joins, views, triggers, and stored procedures in multiple languages. It includes most SQL92 and SQL99 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP. It also supports storage of binary large objects, including pictures, sounds, or video. It has native programming interfaces for CC++, Java, , Perl, Python, Ruby, Tcl, ODBC, among others, and exceptional documentation.

Website: http://www.postgresql.org/