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DBMS > PostgreSQL

PostgreSQL System Properties

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Editorial information provided by DB-Engines
NamePostgreSQL
DescriptionBased on the object relational DBMS Postgres Developed as objectoriented DBMS, gradually enhanced with 'standards' like SQL
Database modelRelational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
DB-Engines Ranking measures the popularity of database management systems
Trend Chart
Score307.61
Rank#5  Overall
#4  Relational DBMS
Websitewww.postgresql.org
Technical documentationwww.postgresql.org/­docs/­manuals
DeveloperPostgreSQL Global Development Group www.postgresql.org/­developer
Initial release1989 1989: Postgres, 1996: PostgreSQL
Current release9.5.3, May 2016
LicenseOpen Source BSD
Database as a Service (DBaaS) Only available as a cloud serviceno
Implementation languageC
Server operating systemsFreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeyes
Typing predefined data types such as float or dateyes
Secondary indexesyes
SQLyes standard with numerous extensions
APIs and other access methodsnative C library
streaming API for large objects
ADO.NET
JDBC
ODBC
Supported programming languages.Net
C
C++
Java JDBC
Perl
Python
Tcl
Server-side scripts Stored proceduresuser defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersyes
Partitioning methods Methods for storing different data on different nodesno, but can be realized using table inheritance for each partition a subtable, inserts are controlled with triggers
Replication methods Methods for redundantly storing data on multiple nodesMaster-slave replication other methods possible by using 3rd party extensions
MapReduceno
Consistency concepts Methods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys Referential integrityyes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of dataACID
Concurrency Support for concurrent manipulation of datayes
Durability Support for making data persistentyes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.no
User concepts Access controlfine grained access rights according to SQL-standard

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More resources
PostgreSQL
DB-Engines blog posts

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

Big gains for Relational Database Management Systems in DB-Engines Ranking
2 February 2016, Matthias Gelbmann

MongoDB and PostgreSQL struggle for the lead of the chasing group in the popularity ranking
1 July 2015, Paul Andlinger

show all

Recent citations in the news

EnterpriseDB wraps PostgreSQL into an enterprise-grade suite to challenge Oracle
23 May 2016, V3.co.uk

PostgreSQL 9.6 beta, SyntaxNet goes open source, and Mozilla files a motion with U.S. District Court—SD Times news ...
13 May 2016, SDTimes.com

Mysql VS PostgreSQL
16 May 2016, TheSequitur.com

PostgreSQL soll neue Versionsnummerierung erhalten - Pro
20 May 2016, Linux

Verziószámozás változtatásra készül a PostgreSQL projekt
20 May 2016, Hungarian Unix Portal

provided by Google News




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