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DBMS > Lovefield vs. Realm vs. Splunk vs. Tkrzw

System Properties Comparison Lovefield vs. Realm vs. Splunk vs. Tkrzw

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Editorial information provided by DB-Engines
NameLovefield  Xexclude from comparisonRealm  Xexclude from comparisonSplunk  Xexclude from comparisonTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison
DescriptionEmbeddable relational database for web apps written in pure JavaScriptA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataAnalytics Platform for Big DataA concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet
Primary database modelRelational DBMSDocument storeSearch engineKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.20
Rank#290  Overall
#136  Relational DBMS
Score9.92
Rank#49  Overall
#8  Document stores
Score98.21
Rank#14  Overall
#2  Search engines
Score0.00
Rank#356  Overall
#57  Key-value stores
Websitegoogle.github.io/­lovefieldrealm.iowww.splunk.comdbmx.net/­tkrzw
Technical documentationgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdrealm.io/­docsdocs.splunk.com/­Documentation/­Splunk
DeveloperGoogleRealm, acquired by MongoDB in May 2019Splunk Inc.Mikio Hirabayashi
Initial release2014201420032020
Current release2.1.12, February 20170.9.3, August 2020
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Sourcecommercial infoLimited free edition and free developer edition availableOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, SafariAndroid
Backend: server-less
iOS
Windows
Linux
OS X
Solaris
Windows
Linux
macOS
Data schemeyesyesyesschema-free
Typing infopredefined data types such as float or dateyesyesyesno
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.nonoyesno
Secondary indexesyesyesyes
SQL infoSupport of SQLSQL-like query language infovia JavaScript builder patternnono infoSplunk Search Processing Language for search commandsno
APIs and other access methodsHTTP REST
Supported programming languagesJavaScript.Net
Java infowith Android only
Objective-C
React Native
Swift
C#
Java
JavaScript
PHP
Python
Ruby
C++
Java
Python
Ruby
Server-side scripts infoStored proceduresnono inforuns within the applications so server-side scripts are unnecessaryyesno
TriggersUsing read-only observersyes infoChange Listenersyesno
Partitioning methods infoMethods for storing different data on different nodesnonenoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneMulti-source replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searching
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infousing MemoryDByes infoIn-Memory realmnoyes infousing specific database classes
User concepts infoAccess controlnoyesAccess rights for users and rolesno
More information provided by the system vendor
LovefieldRealmSplunkTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet
Specific characteristicsNow a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
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Competitive advantagesRealm ensures offline-first functionality, meaning apps run smoothly and deliver...
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Typical application scenariosMobile Consumer Apps First-Line Worker Apps
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Key customersCathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
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Market metricsUsed by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
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Licensing and pricing modelsRealm database is licensed under the Apache License v2.0.
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LovefieldRealmSplunkTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet
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