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DBMS > DataFS vs. Firebase Realtime Database vs. Greenplum vs. IBM Cloudant vs. LokiJS

System Properties Comparison DataFS vs. Firebase Realtime Database vs. Greenplum vs. IBM Cloudant vs. LokiJS

Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonGreenplum  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonLokiJS  Xexclude from comparison
DescriptionAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.Cloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Analytic Database platform built on PostgreSQL. Full name is Pivotal Greenplum Database infoA logical database in Greenplum is an array of individual PostgreSQL databases working together to present a single database image.Database as a Service offering based on Apache CouchDBIn-memory JavaScript DBMS
Primary database modelObject oriented DBMSDocument storeRelational DBMSDocument storeDocument store
Secondary database modelsGraph DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.06
Rank#354  Overall
#15  Object oriented DBMS
Score14.29
Rank#39  Overall
#6  Document stores
Score8.37
Rank#48  Overall
#30  Relational DBMS
Score2.68
Rank#106  Overall
#20  Document stores
Score0.43
Rank#264  Overall
#42  Document stores
Websitenewdatabase.comfirebase.google.com/­products/­realtime-databasegreenplum.orgwww.ibm.com/­products/­cloudantgithub.com/­techfort/­LokiJS
Technical documentationdev.mobiland.com/­Overview.xspfirebase.google.com/­docs/­databasedocs.greenplum.orgcloud.ibm.com/­docs/­Cloudanttechfort.github.io/­LokiJS
DeveloperMobiland AGGoogle infoacquired by Google 2014Pivotal Software Inc.IBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014
Initial release20182012200520102014
Current release1.1.263, October 20227.0.0, September 2023
License infoCommercial or Open SourcecommercialcommercialOpen Source infoApache 2.0commercialOpen Source
Cloud-based only infoOnly available as a cloud servicenoyesnoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageErlangJavaScript
Server operating systemsWindowshostedLinuxhostedserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)schema-freeyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesnono
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.nonoyes infosince Version 4.2nono
Secondary indexesnoyesyesyesyes infovia views
SQL infoSupport of SQLnonoyesnono
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
Android
iOS
JavaScript API
RESTful HTTP API
JDBC
ODBC
RESTful HTTP/JSON APIJavaScript API
Supported programming languages.Net
C
C#
C++
VB.Net
Java
JavaScript
Objective-C
C
Java
Perl
Python
R
C#
Java
JavaScript
Objective-C
PHP
Ruby
JavaScript
Server-side scripts infoStored procedureslimited functionality with using 'rules'yesView functions (Map-Reduce) in JavaScriptView functions in JavaScript
Triggersno, except callback-events from server when changes happenedCallbacks are triggered when data changesyesyesyes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemShardingShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationMulti-source replication
Source-replica replication
none
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesyesyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Immediate ConsistencyEventual Consistencynone
Foreign keys infoReferential integrityyesnoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesACIDno infoatomic operations within a document possibleno infoatomic operations within a single collection possible
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoOptimistic locking
Durability infoSupport for making data persistentyesyesyesyesyes 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.nononoyes
User concepts infoAccess controlWindows-Profileyes, based on authentication and database rulesfine grained access rights according to SQL-standardAccess rights for users can be defined per databaseno

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More resources
DataFSFirebase Realtime DatabaseGreenplumIBM CloudantLokiJS
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