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DBMS > CouchDB vs. DB2

System Properties Comparison CouchDB vs. DB2

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Editorial information provided by DB-Engines
NameCouchDB stands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonDB2  Xexclude from comparison
DescriptionA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.Common in IBM host environments, 2 different versions for host and Windows/Linux
Database modelDocument storeRelational DBMS Since Version 10.5 support for JSON/BSON documents compatible with MongoDB
DB-Engines Ranking measures the popularity of database management systems
Trend Chart
Score22.37
Rank#26  Overall
#4  Document stores
Score186.66
Rank#6  Overall
#5  Relational DBMS
Websitecouchdb.apache.orgwww.ibm.com/­analytics/­us/­en/­technology/­db2
Technical documentationwiki.apache.org/­couchdbwww.ibm.com/­support/­entry/­portal/­support?brandind=information%20management
DeveloperApache Software Foundation Apache top-level project, originally developed by Damien Katz, a former Lotus Notes developerIBM
Initial release20051983 host version
Current release2.0.0, September 2016DB2 Data Server (11.1), April 2016
License Commercial or Open SourceOpen Source Apache version 2commercial free version is available
Cloud-based Only available as a cloud servicenono
Implementation languageErlangC and C++
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows
AIX
HP-UX
Linux
Solaris
Windows
z/OS
Data schemeschema-freeyes
Typing predefined data types such as float or datenoyes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.no
Secondary indexesyes via viewsyes
SQL Support of (almost full) SQL standard (DML, DDL and DCL statements)noyes
APIs and other access methodsRESTful HTTP/JSON APIJSON style queries MongoDB compatible
XQuery
ADO.NET
JDBC
ODBC
Supported programming languagesC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
C
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
Server-side scripts Stored proceduresView functions in JavaScriptyes
Triggersyesyes
Partitioning methods Methods for storing different data on different nodesSharding improved architecture with release 2.0Sharding only with Windows/Unix/Linux Version
Replication methods Methods for redundantly storing data on multiple nodesMaster-master replication
Master-slave replication
yes with separate tools (MQ, InfoSphere)
MapReduce Offers an API for user-defined Map/Reduce methodsyesno
Consistency concepts Methods to ensure consistency in a distributed systemEventual Consistency
Foreign keys Referential integritynoyes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of datano atomic operations within a single document possibleACID
Concurrency Support for concurrent manipulation of datayes strategy: optimistic lockingyes
Durability Support for making data persistentyesyes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.no
User concepts Access controlAccess rights for users can be defined per databasefine grained access rights according to SQL-standard

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More resources
CouchDB stands for "Cluster Of Unreliable Commodity Hardware"DB2
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Conferences and events

IDUG DB2 Tech Conference North America 2017
Anaheim, California, USA, 1-4 May 2017

Recent citations in the news

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19 January 2017, PCWorld

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20 January 2017, Threatpost

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23 January 2017, Windows IT Pro

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