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DBMS > OpenQM vs. Realm

System Properties Comparison OpenQM vs. Realm

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Our visitors often compare OpenQM and Realm with InfluxDB, Redis and PostgreSQL.

Editorial information provided by DB-Engines
NameOpenQM infoalso called QM  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionQpenQM is a high-performance, self-tuning, multi-value DBMSA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelMultivalue DBMSDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.29
Rank#256  Overall
#10  Multivalue DBMS
Score8.59
Rank#46  Overall
#8  Document stores
Websitewww.openqm.comrealm.io
Technical documentationwww.openqm.com/­support/­documentationrealm.io/­docs
DeveloperMartin PhillipsRealm, acquired by MongoDB in May 2019
Initial release19932014
Current release3.4-12
License infoCommercial or Open SourceOpen Source infoGPLv2, extended commercial license availableOpen Source
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.
Server operating systemsAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Android
Backend: server-less
iOS
Windows
Data schemeyes infowith some exceptionsyes
Typing infopredefined data types such as float or dateyes
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.yesno
Secondary indexesyesyes
SQL infoSupport of SQLnono
Supported programming languages.Net
Basic
C
Java
Objective C
PHP
Python
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresyesno inforuns within the applications so server-side scripts are unnecessary
Triggersyesyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesyesnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayes
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 infoIn-Memory realm
User concepts infoAccess controlAccess rights can be defined down to the item levelyes
More information provided by the system vendor
OpenQM infoalso called QMRealm
Specific characteristicsNow a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
» more
Competitive advantagesRealm ensures offline-first functionality, meaning apps run smoothly and deliver...
» more
Typical application scenariosMobile Consumer Apps First-Line Worker Apps
» more
Key customersCathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
» more
Market metricsUsed by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
» more
Licensing and pricing modelsRealm database is licensed under the Apache License v2.0.
» more

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

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More resources
OpenQM infoalso called QMRealm
DB-Engines blog posts

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

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Recent citations in the news

OpenQM
5 March 2019, International Spectrum Magazine

Zumasys Acquires Total Computing Solutions (TCS) Migrates Customers from Universe to OpenQM
1 June 2020, International Spectrum Magazine

provided by Google News

MongoDB Cloud brings developers and edge together
10 June 2020, TechRadar South Africa

MongoDB extends cloud lineup with new database release
15 June 2020, CRN Australia

MongoDB Cloud Gives Developers An Escape From Data Silos With First-Ever Unified Cloud-To-Mobile Experience
9 June 2020, PRNewswire

MongoDB Cloud Delivers Unified Cloud-To-Mobile Experience for Developers
12 June 2020, Database Trends and Applications

GDG North Jersey's February Meeting Covers Realm, A New Mobile Database
6 March 2016, njtechweekly.com

provided by Google News

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