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DBMS > MySQL vs. PostgreSQL vs. Realm

System Properties Comparison MySQL vs. PostgreSQL vs. Realm

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Editorial information provided by DB-Engines
NameMySQL  Xexclude from comparisonPostgreSQL  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionWidely used open source RDBMSWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQLA mobile DBMS often used as a replacement for SQLite
Primary database modelRelational DBMS infoKey/Value like access via memcached APIRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.Relational DBMS
Secondary database modelsDocument storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1229.52
Rank#2  Overall
#2  Relational DBMS
Score483.28
Rank#4  Overall
#4  Relational DBMS
Score7.43
Rank#45  Overall
#27  Relational DBMS
Websitewww.mysql.comwww.postgresql.orgrealm.io
Technical documentationdev.mysql.com/­docwww.postgresql.org/­docs/­manualsrealm.io/­docs
DeveloperOracle infosince 2010, originally MySQL AB, then SunPostgreSQL Global Development Group infowww.postgresql.org/­developerRealm
Initial release19951989 info1989: Postgres, 1996: PostgreSQL2014
Current release8.0.16, April 201911.4, June 2019
License infoCommercial or Open SourceOpen Source infoGPL version 2. Commercial licenses with extended functionallity are availableOpen Source infoBSDcommercial infoLicenses are free. Parts are open sourced.
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
  • Azure Database for MySQL: A fully managed, scalable MySQL relational database with high availability and security built in at no extra cost
  • Google Cloud SQL: A fully-managed database service for the Google Cloud Platform
  • ScaleGrid: Fully managed PostgreSQL hosting with high availability, dedicated servers, and superuser control on the #1 multi-cloud Amazon RDS alternative.
  • Azure Database for PostgreSQL: A fully managed, scalable PostgreSQL relational database with high availability and security built in at no extra cost
  • Google Cloud SQL: A fully-managed database service for the Google Cloud Platform
Implementation languageC and C++C
Server operating systemsFreeBSD
Linux
OS X
Solaris
Windows
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
server-less
Data schemeyesyesyes
Typing infopredefined data types such as float or dateyesyesyes
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.no
Secondary indexesyesyesyes
SQL infoSupport of SQLyes infowith proprietary extensionsyes infostandard with numerous extensionsno
APIs and other access methodsProprietary native API
ADO.NET
JDBC
ODBC
native C library
streaming API for large objects
ADO.NET
JDBC
ODBC
Supported programming languagesAda
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresyes infoproprietary syntaxuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.no
Triggersyesyesyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning, sharding with MySQL Cluster or MySQL Fabricpartitioning by range, list and (since PostgreSQL 11) by hashnone
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 extensionsnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyes infonot for MyISAM storage engineyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infonot for MyISAM storage engineACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infotable locks or row locks depending on storage engineyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes infoIn-Memory realm
User concepts infoAccess controlUsers with fine-grained authorization concept infono user groups or rolesfine grained access rights according to SQL-standardno

More information provided by the system vendor

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Related products and services
3rd partiesDremio is like magic for MySQL accelerating your analytical queries up to 1,000x.
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Azure Database for MySQL provides fully managed, enterprise-ready community MySQL database as a service
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General SQL Parser: Instantly adding parsing, decoding, analysis and rewrite SQL processing capability to your products.
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ScaleGrid: Fully managed MySQL-as-a-Service.
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Navicat for MySQL is the ideal solution for MySQL/MariaDB administration and development.
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SQLPro for MySQL: A simple but powerful MySQL database client available on iPhone and iPad as well as macOS.
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CData: Connect to Big Data & NoSQL through standard Drivers.
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Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
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General SQL Parser: Instantly adding parsing, decoding, analysis and rewrite SQL processing capability to your products.
» more

Azure Database for PostgreSQL provides fully managed, enterprise-ready community PostgreSQL database as a service
» more

SQLPro for PostgreSQL: A simple but powerful PostgreSQL database client available on iPhone and iPad as well as macOS.
» more

Dremio is like magic for PostgreSQL accelerating your analytical queries up to 1,000x.
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pgDash: In-Depth PostgreSQL Monitoring.
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2ndQuadrant: PostgreSQL Solutions for the Enterprise.
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DBHawk: a web-based PostgreSQL/Greenplum database tool. Boost database development and BI productivity with an online Universal database tool.
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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
MySQLPostgreSQLRealm
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Conferences and events

PostgreSQL Conference, Asia 2019
Denpasar, Bali, Indonesia, 9-12 September 2019

PostgreSQL Conference, Europe 2019
Milan, Italy, 15-18 October 2019

Finished events

Achieving High Availability with PostgreSQL
Webinar, 4PM UTC, 26 February 2019 (finished)

Recent citations in the news

PenCarrie Turns to Percona to Support MySQL Database Growth Strategy
23 July 2019, GlobeNewswire

7 MySQL and MariaDB features you don't want to miss
26 June 2019, InfoWorld

GitLab finally cuts loose from 'pain in the a**' MySQL
3 July 2019, DevClass

Relational Databases Software Market 2019 financial overview of the players such as MySQL, Oracle, SAP, PostgreSQL, Amazon RDS, IBM and more
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news digest: Apple's transparency report on customer data, Sony's tech startup fund, and GitLab ends support for MySQL - SD Times
3 July 2019, SDTimes.com

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PostgreSQL database specialist EnterpriseDB gets new backing
28 June 2019, TechTarget

Fully Managed PostgreSQL Hosting on AWS and Azure Launches in Time For Legacy Migrations
17 July 2019, Yahoo Finance

CIS Benchmark for PostgreSQL 11 Enhances PostgreSQL Security for Enterprises
1 July 2019, Yahoo Finance

PostgreSQL on Amazon Aurora Serverless goes live. Check the price tag before diving in, though
10 July 2019, The Register

Crunchy Data releases an update to the CIS Benchmark for PostgreSQL 11
3 July 2019, Help Net Security

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Realm explains the benefits of real-time collaboration for mobile apps
24 October 2016, App Developer Magazine

Realm Makes PostgreSQL Real-Time with New Connector
21 March 2017, Database Trends and Applications

Realm Platform 2.0 Is Significant Step Forward for Building Responsive and Real-Time Mobile Applications
17 October 2017, Business Wire

Realm Receives Investment from Ericsson Ventures to Advance Development of Edge Computing Solutions
21 September 2017, Business Wire

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