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PostgreSQL manual

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PostgreSQL manual downloadPostgresQL is an object-relational database management system (ORDBMS) based on POSTGRES, developed by the Department of Computer Science at the University of California, Berkeley. It has now been renamed PostgreSQL, version 4.2. PostgreSQL supports most SQL standards and provides many other modern features: complex queries, foreign keys, triggers, views, transactional integrity, MVCC. Likewise, PostgreSQL can be extended in many ways, for example, by adding new data types, functions, operators, aggregate functions, and indexes. Free to use, modify, and distribute PostgreSQL for private, commercial, or academic research use.

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