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DBMS > AlaSQL vs. Ehcache vs. LokiJS vs. TerarkDB

System Properties Comparison AlaSQL vs. Ehcache vs. LokiJS vs. TerarkDB

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonEhcache  Xexclude from comparisonLokiJS  Xexclude from comparisonTerarkDB  Xexclude from comparison
DescriptionJavaScript DBMS libraryA widely adopted Java cache with tiered storage optionsIn-memory JavaScript DBMSA key-value store forked from RocksDB with advanced compression algorithms. It can be used standalone or as a storage engine for MySQL and MongoDB
Primary database modelDocument store
Relational DBMS
Key-value storeDocument storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.36
Rank#229  Overall
#32  Document stores
#106  Relational DBMS
Score6.14
Rank#54  Overall
#8  Key-value stores
Score0.36
Rank#230  Overall
#33  Document stores
Score0.04
Rank#319  Overall
#53  Key-value stores
Websitealasql.orgwww.ehcache.orggithub.com/­techfort/­LokiJSgithub.com/­Terark/­terarkdb
Technical documentationgithub.com/­agershun/­alasqlwww.ehcache.org/­documentationtechfort.github.io/­LokiJSgithub.com/­Terark/­terarkdb/­wiki
DeveloperAndrey Gershun & Mathias R. WulffTerracotta Inc, owned by Software AGTerark
Initial release2014200920142016
Current release3.8.0, July 2019
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache Version 2; commercial licenses availableOpen Sourcecommercial inforestricted open source version available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptJavaJavaScriptC++
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java VMserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenoyesnono
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 viewsno
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.nonono
APIs and other access methodsJavaScript APIJCacheJavaScript APIC++ API
Java API
Supported programming languagesJavaScriptJavaJavaScriptC++
Java
Server-side scripts infoStored proceduresnonoView functions in JavaScriptno
Triggersyesyes infoCache Event Listenersyesno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infoby using Terracotta Servernonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infoby using Terracotta Servernonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneTunable Consistency (Strong, Eventual, Weak)none
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageyes infosupports JTA and can work as an XA resourceno infoatomic operations within a single collection possibleno
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyes infousing a tiered cache-storage approachyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesyes
User concepts infoAccess controlnononono

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More resources
AlaSQLEhcacheLokiJSTerarkDB
DB-Engines blog posts

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