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DBMS > CouchDB vs. FatDB vs. IBM Db2 vs. Kyligence Enterprise vs. Sequoiadb

System Properties Comparison CouchDB vs. FatDB vs. IBM Db2 vs. Kyligence Enterprise vs. Sequoiadb

Editorial information provided by DB-Engines
NameCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonFatDB  Xexclude from comparisonIBM Db2 infoformerly named DB2 or IBM Database 2  Xexclude from comparisonKyligence Enterprise  Xexclude from comparisonSequoiadb  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.A .NET NoSQL DBMS that can integrate with and extend SQL Server.Common in IBM host environments, 2 different versions for host and Windows/LinuxA distributed analytics engine for big data, built on top of Apache KylinNewSQL database with distributed OLTP and SQL
Primary database modelDocument storeDocument store
Key-value store
Relational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBRelational DBMSDocument store
Relational DBMS
Secondary database modelsSpatial DBMS infousing the Geocouch extensionDocument store
RDF store infoin Db2 LUW (Linux, Unix, Windows)
Spatial DBMS infowith Db2 Spatial Extender
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score8.30
Rank#47  Overall
#7  Document stores
Score125.90
Rank#9  Overall
#6  Relational DBMS
Score0.46
Rank#266  Overall
#124  Relational DBMS
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Websitecouchdb.apache.orgwww.ibm.com/­products/­db2kyligence.io/­kyligence-enterprisewww.sequoiadb.com
Technical documentationdocs.couchdb.org/­en/­stablewww.ibm.com/­docs/­en/­db2www.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerFatCloudIBMKyligence, Inc.Sequoiadb Ltd.
Initial release200520121983 infohost version20162013
Current release3.3.3, December 202312.1, October 2016
License infoCommercial or Open SourceOpen Source infoApache version 2commercialcommercial infofree version is availablecommercialOpen Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageErlangC#C and C++JavaC++
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows
WindowsAIX
HP-UX
Linux
Solaris
Windows
z/OS
LinuxLinux
Data schemeschema-freeschema-freeyesyesschema-free
Typing infopredefined data types such as float or datenoyesyesyesyes infooid, date, timestamp, binary, regex
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.nonono
Secondary indexesyes infovia viewsyesyesyesyes
SQL infoSupport of SQLnono infoVia inetgration in SQL ServeryesANSI SQL for queries (using Apache Calcite)SQL-like query language
APIs and other access methodsRESTful HTTP/JSON API.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
ADO.NET
JDBC
JSON style queries infoMongoDB compatible
ODBC
XQuery
JDBC
ODBC
RESTful HTTP API
proprietary protocol using JSON
Supported programming languagesC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
C#C
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresView functions in JavaScriptyes infovia applicationsyesJavaScript
Triggersyesyes infovia applicationsyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infoimproved architecture with release 2.0ShardingSharding infoonly with Windows/Unix/Linux VersionSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
selectable replication factoryes infowith separate tools (MQ, InfoSphere)Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyesnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyEventual Consistency
Immediate Consistency
Immediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single document possiblenoACIDDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayes infostrategy: optimistic lockingyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonono
User concepts infoAccess controlAccess rights for users can be defined per databaseno infoCan implement custom security layer via applicationsfine grained access rights according to SQL-standardsimple password-based access control

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More resources
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"FatDBIBM Db2 infoformerly named DB2 or IBM Database 2Kyligence EnterpriseSequoiadb
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