PostgreSQL, Object-Relational Database Management System

PostgreSQL is an open source relational database management system developed by a community of world-spread volunteer engineersd. Its proven architecture has earned a good reputation for data integrity, reliability, and correctness. The first launch of the platform was in July of 1996 and since then the major releases and minor “bug fixings” happen annually with code coming from companies, proprietary vendors, and open-source programmers. PostgreSQL has a uniquely advanced query optimizer and lots of built-in features what makes it a good choice for databases compilation.


PostgreSQL was designed to store huge amounts of data securely and return that data when requested from other software applications. The software is highly scalable in the quantity of data and in the number of concurrent users. PostgreSQL can handle workloads ranging from small single-machine applications to huge internet-facing applications and data warehousing. The maximum database size is unlimited and it can store up to 32TB in each table, 1.6TB in each row, and up to 1GB in each field. PostgreSQL provides storage of binary large objects such as audio recordings, pictures, and video alongside text data. It is compatible with major operating systems including UNIX, Linux, and Windows.


PostgreSQL runs stored procedures in multiple programming languages, including Java, Python, Perl, Ruby, C/C++, Tcl, its own PL/pgSQL. PostgresSQL supports many library interfaces, including those written for Java, Python, Perl, Ruby, C, C++, Lisp, PHP, and more.


Being a database of an enterprise class, PostgreSQL has many advanced features that include multi-version concurrency control (MVCC), tablespaces, point in time recovery, nested transactions (savepoints), asynchronous replication, an advanced query planner/optimizer, online/hot backups, and write ahead logging for fault tolerance.


PostgreSQL is compliant to standards and highly customizable.  The platform's source code is available under an open source PostgreSQL License which gives developers the full freedom to use, modify, and distribute PostgreSQL in any form. It makes PostgreSQL a powerful development platform for web, in-house or commercial software products that require a capable RDBMS.

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