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DBMS > AlaSQL vs. OpenQM vs. PouchDB

System Properties Comparison AlaSQL vs. OpenQM vs. PouchDB

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonPouchDB  Xexclude from comparison
DescriptionJavaScript DBMS libraryQpenQM is a high-performance, self-tuning, multi-value DBMSJavaScript DBMS with an API inspired by CouchDB
Primary database modelDocument store
Relational DBMS
Multivalue DBMSDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.64
Rank#219  Overall
#33  Document stores
#108  Relational DBMS
Score0.39
Rank#254  Overall
#10  Multivalue DBMS
Score2.86
Rank#100  Overall
#18  Document stores
Websitealasql.orgwww.openqm.compouchdb.com
Technical documentationgithub.com/­agershun/­alasqlwww.openqm.com/­support/­documentationpouchdb.com/­guides
DeveloperAndrey Gershun & Mathias R. WulffMartin PhillipsApache Software Foundation
Initial release201419932012
Current release3.4-127.1.1, June 2019
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoGPLv2, extended commercial license availableOpen Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptJavaScript
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyes infowith some exceptionsschema-free
Typing infopredefined data types such as float or datenono
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 indexesnoyesyes infovia views
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.nono
APIs and other access methodsJavaScript APIHTTP REST infoonly for PouchDB Server
JavaScript API
Supported programming languagesJavaScript.Net
Basic
C
Java
Objective C
PHP
Python
JavaScript
Server-side scripts infoStored proceduresnoyesView functions in JavaScript
Triggersyesyesyes
Partitioning methods infoMethods for storing different data on different nodesnoneyesSharding infowith a proxy-based framework, named couchdb-lounge
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyesMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDno
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyes infoby using IndexedDB, WebSQL or LevelDB as backend
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlnoAccess rights can be defined down to the item levelno

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More resources
AlaSQLOpenQM infoalso called QMPouchDB
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

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