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DBMS > FeatureBase vs. JSqlDb vs. LokiJS vs. XTDB

System Properties Comparison FeatureBase vs. JSqlDb vs. LokiJS vs. XTDB

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Editorial information provided by DB-Engines
NameFeatureBase  Xexclude from comparisonJSqlDb  Xexclude from comparisonLokiJS  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
DescriptionReal-time database platform that powers real-time analytics and machine learning applications by simultaneously executing low-latency, high-throughput, and highly concurrent workloads.JavaScript Query Language Database, stores JavaScript objects and primitivesIn-memory JavaScript DBMSA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelRelational DBMSDocument store
Object oriented DBMS
Document storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#292  Overall
#135  Relational DBMS
Score0.49
Rank#260  Overall
#42  Document stores
Score0.18
Rank#332  Overall
#46  Document stores
Websitewww.featurebase.comjsqldb.org (offline)github.com/­techfort/­LokiJSgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationdocs.featurebase.comtechfort.github.io/­LokiJSwww.xtdb.com/­docs
DeveloperMolecula and Pilosa Open Source ContributorsKonrad von BackstromJuxt Ltd.
Initial release2017201820142019
Current release2022, May 20220.8, December 20181.19, 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

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoJavaScriptClojure
Server operating systemsLinux
macOS
Linux
macOS
Windows
server-less, requires a JavaScript environment (browser, Node.js)All OS with a Java 8 (and higher) VM
Linux
Data schemeyesschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesnonoyes, 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.nononono
Secondary indexesnonoyes infovia viewsyes
SQL infoSupport of SQLSQL queriesnonolimited SQL, making use of Apache Calcite
APIs and other access methodsgRPC
JDBC
Kafka Connector
ODBC
JavaScript APIHTTP REST
JDBC
Supported programming languagesJava
Python
JavaScriptJavaScriptClojure
Java
Server-side scripts infoStored proceduresfunctions in JavaScriptView functions in JavaScriptno
Triggersnonoyesno
Partitioning methods infoMethods for storing different data on different nodesShardingnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnonenoneyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnone
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesno infoatomic operations within a single collection possibleACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes, using Linux fsyncyes infousing RocksDByes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes, 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

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More resources
FeatureBaseJSqlDbLokiJSXTDB infoformerly named Crux
DB-Engines blog posts

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