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DBMS > AlaSQL vs. Alibaba Cloud AnalyticDB for PostgreSQL vs. CouchDB vs. LokiJS

System Properties Comparison AlaSQL vs. Alibaba Cloud AnalyticDB for PostgreSQL vs. CouchDB vs. LokiJS

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonAlibaba Cloud AnalyticDB for PostgreSQL infoformer name was HybridDB  Xexclude from comparisonCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonLokiJS  Xexclude from comparison
DescriptionJavaScript DBMS libraryAn online MPP (Massively Parallel Processing) data warehousing service based on GreenplumA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.In-memory JavaScript DBMS
Primary database modelDocument store
Relational DBMS
Relational DBMSDocument storeDocument store
Secondary database modelsSpatial DBMS infousing the Geocouch extension
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#260  Overall
#40  Document stores
#121  Relational DBMS
Score0.68
Rank#231  Overall
#105  Relational DBMS
Score9.30
Rank#45  Overall
#7  Document stores
Score0.43
Rank#264  Overall
#42  Document stores
Websitealasql.orgwww.alibabacloud.com/­product/­hybriddb-postgresqlcouchdb.apache.orggithub.com/­techfort/­LokiJS
Technical documentationgithub.com/­AlaSQL/­alasqlwww.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overviewdocs.couchdb.org/­en/­stabletechfort.github.io/­LokiJS
DeveloperAndrey Gershun & Mathias R. WulffAlibaba / Pivotal Software Inc. / PostgreSQL Global Development GroupApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developer
Initial release2014201620052014
Current release3.3.3, December 2023
License infoCommercial or Open SourceOpen Source infoMIT-LicensecommercialOpen Source infoApache version 2Open Source
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptErlangJavaScript
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)hostedAndroid
BSD
Linux
OS X
Solaris
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyesschema-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.noyesnono
Secondary indexesnoyesyes infovia viewsyes infovia views
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.yesnono
APIs and other access methodsJavaScript APIJDBC
ODBC
RESTful HTTP/JSON APIJavaScript API
Supported programming languagesJavaScriptC
Java
Perl
Python
R
C
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
JavaScript
Server-side scripts infoStored proceduresnoyesView functions in JavaScriptView functions in JavaScript
Triggersyesyesyesyes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infoImplicit feature of the cloud serviceSharding infoimproved architecture with release 2.0none
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infoImplicit feature of the cloud serviceMulti-source replication
Source-replica replication
none
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesyes
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyEventual Consistencynone
Foreign keys infoReferential integrityyesyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageACIDno infoatomic operations within a single document possibleno infoatomic operations within a single collection possible
Concurrency infoSupport for concurrent manipulation of datayesyes infostrategy: optimistic locking
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnonoyes
User concepts infoAccess controlnofine grained access rights according to SQL-standardAccess rights for users can be defined per databaseno

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More resources
AlaSQLAlibaba Cloud AnalyticDB for PostgreSQL infoformer name was HybridDBCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"LokiJS
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