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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
Score361.77
Rank#4  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 release9.6.2, February 2017
License Commercial or Open SourceOpen Source BSD
Cloud-based 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
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yes specific XML-type available, but no XML query functionality.
Secondary indexesyes
SQL Support of (almost full) SQL standard (DML, DDL and DCL statements)yes 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++
Delphi
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
MapReduce Offers an API for user-defined Map/Reduce methodsno
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

Microsoft SQL Server is the DBMS of the Year
4 January 2017, Matthias Gelbmann, Paul Andlinger

PostgreSQL moves up one rank at the expense of MongoDB
1 September 2016, Paul Andlinger

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

show all

Conferences and events

PGCon 2017
Ottawa, Canada, 25-26 May 2017

Recent citations in the news

A Preview of Coming Features in PostgreSQL 10
16 April 2017, InfoQ.com

PostgreSQL 10.0 appeals to the SQL faithful
10 April 2017, InfoWorld

PostgreSQL Community Leaders from EnterpriseDB to Present at ...
29 March 2017, PR Newswire (press release)

DISA Issues Security Technical Implementation Guide for Crunchy Data's PostgreSQL Database
27 March 2017, ExecutiveBiz (blog)

PostgreSQL 10新特性概述
19 April 2017, InfoQ: 时刻关注企业软件开发领域的变化与创新

provided by Google News




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