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DBMS > FatDB vs. LokiJS vs. OrigoDB vs. XTDB

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

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Editorial information provided by DB-Engines
NameFatDB  Xexclude from comparisonLokiJS  Xexclude from comparisonOrigoDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionA .NET NoSQL DBMS that can integrate with and extend SQL Server.In-memory JavaScript DBMSA fully ACID in-memory object graph databaseA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument store
Key-value store
Document storeDocument store
Object oriented DBMS
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.49
Rank#260  Overall
#42  Document stores
Score0.06
Rank#380  Overall
#50  Document stores
#19  Object oriented DBMS
Score0.18
Rank#332  Overall
#46  Document stores
Websitegithub.com/­techfort/­LokiJSorigodb.comgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationtechfort.github.io/­LokiJSorigodb.com/­docswww.xtdb.com/­docs
DeveloperFatCloudRobert Friberg et alJuxt Ltd.
Initial release201220142009 infounder the name LiveDB2019
Current release1.19, September 2021
License infoCommercial or Open SourcecommercialOpen 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 languageC#JavaScriptC#Clojure
Server operating systemsWindowsserver-less, requires a JavaScript environment (browser, Node.js)Linux
Windows
All OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or dateyesnoUser 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.nono infocan be achieved using .NETno
Secondary indexesyesyes infovia viewsyesyes
SQL infoSupport of SQLno infoVia inetgration in SQL Servernonolimited SQL, making use of Apache Calcite
APIs and other access methods.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
JavaScript API.NET Client API
HTTP API
LINQ
HTTP REST
JDBC
Supported programming languagesC#JavaScript.NetClojure
Java
Server-side scripts infoStored proceduresyes infovia applicationsView functions in JavaScriptyesno
Triggersyes infovia applicationsyesyes infoDomain Eventsno
Partitioning methods infoMethods for storing different data on different nodesShardingnonehorizontal partitioning infoclient side managed; servers are not synchronizednone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factornoneSource-replica replicationyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
none
Foreign keys infoReferential integritynonodepending on modelno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a single collection possibleACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes 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.yesyes
User concepts infoAccess controlno infoCan implement custom security layer via applicationsnoRole based authorization

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More resources
FatDBLokiJSOrigoDBXTDB infoformerly named Crux
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
1 December 2014, Matthias Gelbmann

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Recent citations in the news

LokiJS - A JavaScript Database
18 November 2014, iProgrammer

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