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DBMS > Realm vs. Splunk vs. Tkrzw

System Properties Comparison Realm vs. Splunk vs. Tkrzw

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Editorial information provided by DB-Engines
NameRealm  Xexclude from comparisonSplunk  Xexclude from comparisonTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison
DescriptionA 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 modelDocument storeSearch engineKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.71
Rank#52  Overall
#9  Document stores
Score88.71
Rank#14  Overall
#2  Search engines
Score0.09
Rank#354  Overall
#51  Key-value stores
Websiterealm.iowww.splunk.comdbmx.net/­tkrzw
Technical documentationrealm.io/­docsdocs.splunk.com/­Documentation/­Splunk
DeveloperRealm, acquired by MongoDB in May 2019Splunk Inc.Mikio Hirabayashi
Initial release201420032020
Current release0.9.3, August 2020
License infoCommercial or Open SourceOpen Sourcecommercial infoLimited free edition and free developer edition availableOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++
Server operating systemsAndroid
Backend: server-less
iOS
Windows
Linux
OS X
Solaris
Windows
Linux
macOS
Data schemeyesyesschema-free
Typing infopredefined data types such as float or dateyesyesno
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.noyesno
Secondary indexesyesyes
SQL infoSupport of SQLnono infoSplunk Search Processing Language for search commandsno
APIs and other access methodsHTTP REST
Supported programming languages.Net
Java infowith Android only
Objective-C
React Native
Swift
C#
Java
JavaScript
PHP
Python
Ruby
C++
Java
Python
Ruby
Server-side scripts infoStored proceduresno inforuns within the applications so server-side scripts are unnecessaryyesno
Triggersyes infoChange Listenersyesno
Partitioning methods infoMethods for storing different data on different nodesnoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replicationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searching
Concurrency infoSupport for concurrent manipulation of datayesyes
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.yes infoIn-Memory realmnoyes infousing specific database classes
User concepts infoAccess controlyesAccess rights for users and rolesno

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More resources
RealmSplunkTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet
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