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DBMS > LokiJS vs. OpenMLDB vs. OrigoDB vs. XTDB

System Properties Comparison LokiJS vs. OpenMLDB vs. OrigoDB vs. XTDB

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Editorial information provided by DB-Engines
NameLokiJS  Xexclude from comparisonOpenMLDB  Xexclude from comparisonOrigoDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionIn-memory JavaScript DBMSAn open-source machine learning database that provides a feature platform for training and inferenceA fully ACID in-memory object graph databaseA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument storeTime Series DBMSDocument store
Object oriented DBMS
Document store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.44
Rank#256  Overall
#40  Document stores
Score0.11
Rank#339  Overall
#30  Time Series DBMS
Score0.00
Rank#385  Overall
#54  Document stores
#21  Object oriented DBMS
Score0.13
Rank#330  Overall
#45  Document stores
Websitegithub.com/­techfort/­LokiJSopenmldb.aiorigodb.comgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationtechfort.github.io/­LokiJSopenmldb.ai/­docs/­zh/­mainorigodb.com/­docswww.xtdb.com/­docs
Developer4 Paradigm Inc.Robert Friberg et alJuxt Ltd.
Initial release201420202009 infounder the name LiveDB2019
Current release2024-2 February 20241.19, September 2021
License infoCommercial or Open SourceOpen SourceOpen SourceOpen SourceOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++, Java, ScalaC#Clojure
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)LinuxLinux
Windows
All OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeFixed schemayesschema-free
Typing infopredefined data types such as float or datenoyesUser defined using .NET types and collectionsyes, extensible-data-notation format
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.nonono infocan be achieved using .NETno
Secondary indexesyes infovia viewsyesyesyes
SQL infoSupport of SQLnoyesnolimited SQL, making use of Apache Calcite
APIs and other access methodsJavaScript APIJDBC
SQLAlchemy
.NET Client API
HTTP API
LINQ
HTTP REST
JDBC
Supported programming languagesJavaScriptC++
Go
Java
Python
Scala
.NetClojure
Java
Server-side scripts infoStored proceduresView functions in JavaScriptnoyesno
Triggersyesnoyes infoDomain Eventsno
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioninghorizontal partitioning infoclient side managed; servers are not synchronizednone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replicationSource-replica replicationyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency
Foreign keys infoReferential integritynonodepending on modelno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single collection possiblenoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yesyes infoWrite ahead logyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlnofine grained access rights according to SQL-standardRole based authorization

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More resources
LokiJSOpenMLDBOrigoDBXTDB infoformerly named Crux
DB-Engines blog posts

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