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PostgreSQL (/ ˌ p oʊ s t ɡ r ɛ s k j u ˈ ɛ l / POHST-gres-kew-EL) [11] [12] also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance.
PL/pgSQL (Procedural Language/PostgreSQL) is a procedural programming language supported by the PostgreSQL ORDBMS. It closely resembles Oracle 's PL/SQL language. Implemented by Jan Wieck, PL/pgSQL first appeared with PostgreSQL 6.4, released on October 30, 1998. [ 1 ]
In April 2016, with the introduction of the EDB Postgres Platform, EDB's fully integrated next-generation data management platform, the database was renamed to EDB Postgres Advanced Server. [6] In 2020, EDB acquired 2ndQuadrant, [7] a global Postgres solutions and tools company based out of the UK, becoming the leader in the PostgreSQL market. [8]
The web server or database management system also varies. LEMP is a version where Apache has been replaced with the more lightweight web server Nginx. [6] A version where MySQL has been replaced by PostgreSQL is called LAPP, or sometimes by keeping the original acronym, LAMP (Linux / Apache / Middleware (Perl, PHP, Python, Ruby) / PostgreSQL). [7]
It is available for Windows and Linux operating systems. It is a tool for visualizing and processing spatial data, characterized by its friendly user interface and access to multiple data formats, both vectorial (in a file, such as Shapefile , GML , KML , DWG and DXF , or a database, such as PostgreSQL , MySQL , or Oracle ) and raster ( TIFF ...
Resulting database can be to certain extent manipulated using dedicated database tools. In Kexi, such data and definition of objects is known as project. Kexi Table designer allows users to design tables, which can then be created and opened for data entry, sorting and searching. Standard data types are available common to supported database ...
PostGIS (/ ˈ p oʊ s t dʒ ɪ s / POST-jis) is an open source software program that adds support for geographic objects to the PostgreSQL object-relational database. PostGIS follows the Simple Features for SQL specification from the Open Geospatial Consortium (OGC). PostGIS is implemented as a PostgreSQL external extension. [2]
The database layer was again replaced by a single-unit approach [clarification needed] in October 2009 by Becker. Later, this was again extended for supporting other database servers. jHeidi—a version written in Java was designed to work on Mac and Linux computers—was discontinued in March 2010 in favor of Wine support.