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DBMS > Oracle vs. PostgreSQL

System Properties Comparison Oracle vs. PostgreSQL

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Our visitors often compare Oracle and PostgreSQL with MySQL, MongoDB and MariaDB.

Editorial information provided by DB-Engines
NameOracle  Xexclude from comparisonPostgreSQL  Xexclude from comparison
DescriptionWidely used RDBMSWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelRelational DBMSRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsDocument store
Graph DBMS infowith Oracle Spatial and Graph
Key-value store
RDF store infowith Oracle Spatial and Graph
Document store
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1301.11
Rank#1  Overall
#1  Relational DBMS
Score440.24
Rank#4  Overall
#4  Relational DBMS
Websitewww.oracle.com/­databasewww.postgresql.org
Technical documentationdocs.oracle.com/­en/­databasewww.postgresql.org/­docs/­manuals
DeveloperOraclePostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release19801989 info1989: Postgres, 1996: PostgreSQL
Current release18 (18.1), February 201811.1, November 2018
License infoCommercial or Open Sourcecommercial inforestricted free version is availableOpen Source infoBSD
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service
  • Google Cloud SQL: A fully-managed database service for the Google Cloud Platform
  • Azure Database for PostgreSQL: A fully managed, scalable PostgreSQL relational database with high availability and security built in at no extra cost
Implementation languageC and C++C
Server operating systemsAIX
HP-UX
Linux
OS X
Solaris
Windows
z/OS
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeyes infoSchemaless in JSON and XML columnsyes
Typing infopredefined data types such as float or dateyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yesyes infospecific XML-type available, but no XML query functionality.
Secondary indexesyesyes
SQL infoSupport of SQLyes infowith proprietary extensionsyes infostandard with numerous extensions
APIs and other access methodsODP.NET
Oracle Call Interface (OCI)
JDBC
ODBC
native C library
streaming API for large objects
ADO.NET
JDBC
ODBC
Supported programming languagesC
C#
C++
Clojure
Cobol
Delphi
Eiffel
Erlang
Fortran
Groovy
Haskell
Java
JavaScript
Lisp
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Scala
Tcl
Visual Basic
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresPL/SQL infoalso stored procedures in Java possibleuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersyesyes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning infowith the optional Oracle Partitioningpartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-master replication
Master-slave replication
Master-slave replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infocan be realized in PL/SQLno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoisolation level can be parameterizedACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infoVersion 12c introduced the new option 'Oracle Database In-Memory'no
User concepts infoAccess controlfine grained access rights according to SQL-standardfine grained access rights according to SQL-standard
More information provided by the system vendor
OraclePostgreSQL
Specific characteristicsOracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is a multi-model...
» more
Licensing and pricing modelsOracle Database Cloud Services Customers can choose from a wide range of database...
» more

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services
3rd partiesNavicat for Oracle improves the efficiency and productivity of Oracle developers and administrators with a streamlined working environment.
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Progress DataDirect: Hybrid Connectivity for Oracle
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Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
OraclePostgreSQL
DB-Engines blog posts

The struggle for the hegemony in Oracle's database empire
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25 November 2016, Tony Branson (guest author)

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PostgreSQL is the DBMS of the Year 2017
2 January 2018, Paul Andlinger, Matthias Gelbmann

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

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Conferences and events

PGCon 2019, PostgreSQL Conference for Users and Developers
Ottawa, Canada, 28-31 May 2019

Recent citations in the news

​Amazon's consumer business moves from Oracle to AWS, but Larry Ellison won't stop talking
10 November 2018, ZDNet

Rubrik Andes Adds Oracle, SAP, and Microsoft Protection and Automation
14 November 2018, SDxCentral

Oracle's next chapter: The Autonomous Database and the DBA
31 October 2018, ZDNet

'Keep Talkin' Larry:' AWS CEO Trolls Oracle's Ellison, as Amazon Dumps Oracle
11 November 2018, Light Reading

Stay classy: Amazon's Jassy gets sassy with Larry
12 November 2018, The Register

provided by Google News

Schedule for 2ndQuadrant PostgreSQL Conference 2018 Announced
6 November 2018, PR Newswire (press release)

PostgreSQL 11 taps LLVM and parallelization for speed boost
18 October 2018, InfoWorld

PostgreSQL 11.1 Released To Address The Latest Open-Source Security Vulnerability
8 November 2018, Phoronix (blog)

PostgreSQL Updates to Address Security Issue, openSUSE Announces New Legal Review System, Gumstix Launches ...
8 November 2018, Linux Journal

2ndQuadrant Partners With Frontrunner in Online Trading to Boost PostgreSQL Performance by 400%
1 November 2018, PR Newswire (press release)

provided by Google News

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