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DBMS > DataFS vs. KairosDB vs. LMDB vs. OrientDB vs. PouchDB

System Properties Comparison DataFS vs. KairosDB vs. LMDB vs. OrientDB vs. PouchDB

Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonKairosDB  Xexclude from comparisonLMDB  Xexclude from comparisonOrientDB  Xexclude from comparisonPouchDB  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.Distributed Time Series DBMS based on Cassandra or H2A high performant, light-weight, embedded key-value database libraryMulti-model DBMS (Document, Graph, Key/Value)JavaScript DBMS with an API inspired by CouchDB
Primary database modelObject oriented DBMSTime Series DBMSKey-value storeDocument store
Graph DBMS
Key-value store
Document store
Secondary database modelsGraph DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score0.67
Rank#233  Overall
#20  Time Series DBMS
Score2.09
Rank#121  Overall
#20  Key-value stores
Score3.25
Rank#89  Overall
#16  Document stores
#6  Graph DBMS
#13  Key-value stores
Score2.34
Rank#112  Overall
#21  Document stores
Websitenewdatabase.comgithub.com/­kairosdb/­kairosdbwww.symas.com/­symas-embedded-database-lmdborientdb.orgpouchdb.com
Technical documentationdev.mobiland.com/­Overview.xspkairosdb.github.iowww.lmdb.tech/­docwww.orientdb.com/­docs/­last/­index.htmlpouchdb.com/­guides
DeveloperMobiland AGSymasOrientDB LTD; CallidusCloud; SAPApache Software Foundation
Initial release20182013201120102012
Current release1.1.263, October 20221.2.2, November 20180.9.32, January 20243.2.29, March 20247.1.1, June 2019
License infoCommercial or Open SourcecommercialOpen Source infoApache 2.0Open SourceOpen Source infoApache version 2Open Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaCJavaJavaScript
Server operating systemsWindowsLinux
OS X
Windows
Linux
Unix
Windows
All OS with a Java JDK (>= JDK 6)server-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-freeschema-freeschema-free infoSchema can be enforced for whole record ("schema-full") or for some fields only ("schema-hybrid")schema-free
Typing infopredefined data types such as float or dateyesyesyesno
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.nonononono
Secondary indexesnononoyesyes infovia views
SQL infoSupport of SQLnononoSQL-like query language, no joinsno
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
Graphite protocol
HTTP REST
Telnet API
Tinkerpop technology stack with Blueprints, Gremlin, Pipes
Java API
RESTful HTTP/JSON API
HTTP REST infoonly for PouchDB Server
JavaScript API
Supported programming languages.Net
C
C#
C++
VB.Net
Java
JavaScript infoNode.js
PHP
Python
.Net
C
C++
Clojure
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Nim
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Rust
Swift
Tcl
.Net
C
C#
C++
Clojure
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Scala
JavaScript
Server-side scripts infoStored proceduresnonoJava, JavascriptView functions in JavaScript
Triggersno, except callback-events from server when changes happenednonoHooksyes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemSharding infobased on CassandranoneShardingSharding infowith a proxy-based framework, named couchdb-lounge
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandranoneMulti-source replicationMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono infocould be achieved with distributed queriesyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesnonoyes inforelationship in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes 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.nonoyesyes
User concepts infoAccess controlWindows-Profilesimple password-based access controlnoAccess rights for users and roles; record level security configurableno

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More resources
DataFSKairosDBLMDBOrientDBPouchDB
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