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DBMS > Realm vs. VoltDB

System Properties Comparison Realm vs. VoltDB

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Our visitors often compare Realm and VoltDB with MongoDB, MySQL and PostgreSQL.

Editorial information provided by DB-Engines
NameRealm  Xexclude from comparisonVoltDB  Xexclude from comparison
DescriptionA mobile DBMS often used as a replacement for SQLiteDistributed In-Memory NewSQL RDBMS infoUsed for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory
Primary database modelRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.92
Rank#44  Overall
#27  Relational DBMS
Score1.71
Rank#116  Overall
#59  Relational DBMS
Websiterealm.iowww.voltdb.com
Technical documentationrealm.io/­docsdocs.voltdb.com
DeveloperRealm, acquired by MongoDB in May 2019VoltDB Inc.
Initial release20142010
Current release9.0, April 2019
License infoCommercial or Open Sourcecommercial infoLicenses are free. Parts are open sourced.Open Source infoAGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava, C++
Server operating systemsserver-lessLinux
OS X infofor development
Data schemeyesyes
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.no
Secondary indexesyesyes
SQL infoSupport of SQLnoyes infoonly a subset of SQL 99
APIs and other access methodsJava API
RESTful HTTP/JSON API
JDBC
Supported programming languagesJava infowith Android only
Objective-C
React Native
Swift
C#
C++
Erlang infonot officially supported
Go
Java
JavaScript infoNode.js
PHP
Python
Server-side scripts infoStored proceduresnoJava
Triggersyes infoChange Listenersno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMaster-master replication
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynono infoFOREIGN KEY constraints are not supported
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infoTransactions are executed single-threaded within stored procedures
Concurrency infoSupport for concurrent manipulation of datayes infoData access is serialized by the server
Durability infoSupport for making data persistentyesyes infoSnapshots and command logging
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infoIn-Memory realm
User concepts infoAccess controlnoUsers and roles with access to stored procedures

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More resources
RealmVoltDB
DB-Engines blog posts

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Recent citations in the news

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

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

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

Realm Launches Realm Mobile Platform Professional Edition to Drive Collaborative Realtime Applications
12 December 2016, Business Wire

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

provided by Google News

What Are the Driving Growth of In-Memory Database Market By Top Key Players Oracle Corporation, Teradata Corporation, VoltDB Inc., Microsoft Corporation, Software AG, IBM Corporation, Amazon Web Services
3 October 2019, Market Report Gazette

How ML Helps Solve the Big Data Transform/Mastering Problem
10 October 2019, Datanami

VoltDB Introduces Smart Streaming Architecture for the Connected World
13 April 2019, AiThority

In-Memory Database Market Size & Share set for accelerated growth by 2024
9 October 2019, Industry PressRelease

NoSQL vs. NewSQL: Comparing Database Technologies
9 September 2019, Datanami

provided by Google News

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