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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 document store inspired by Lotus NotesCommon in IBM host environments, 2 different versions for host and Windows/Linux
DB-Engines Ranking measures the popularity of database management systems
Trend Chart
Rank22
Score26.83
Rank6
Score210.25
Websitecouchdb.apache.orgibm.com/­software/­data/­db2
Technical documentationwiki.apache.org/­couchdbwww.ibm.com/­support/­entry/­portal/­documentation/­software/­information_management
DeveloperApache Software Foundation Apache top-level project, originally developed by Damien Katz, a former Lotus Notes developerIBM
Initial release20051983 host version
LicenseOpen Source Apache version 2commercial free version is available
Database as a Service (DBaaS) Only available as a cloud servicenono
Implementation languageErlangC and C++
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows
Linux
Unix
Windows
z/OS
Database modelDocument storeRelational DBMS Since Version 10.5 support for JSON/BSON documents compatible with MongoDB
Data schemeschema-freeyes
Typing predefined data types such as float or datenoyes
Secondary indexesyes via viewsyes
SQLnoyes
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
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 with a proxy-based framework, named couchdb-loungeSharding 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)
MapReduceyesno
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
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
Conferences and Events

IDUG DB2 Tech Conference 2015
Philadelphia, Pennsylvania, USA, 4-8 May 2015

IDUG DB2 Tech Conference EMEA 2015
Dublin, Ireland, 15-20 November 2015

Recent citations in the news

Developer Preview of CouchDB 2.0 Document Database
27 November 2014, Dr. Dobb's

CouchDB 2.0 counters MongoDB with improved scaling
17 November 2014, InfoWorld

Apache CouchDB 2.0开发者预览版发布,支持集群的水平扩展
24 November 2014, InfoQ: 时刻关注企业软件开发领域的变化与创新

CouchDB Progresses As IBM Acquires Cloudant
21 March 2014, InfoQ.com

Cloudant Unveils On-Premise Version of CouchDB Implementation
27 October 2014, IT Business Edge (blog)

provided by Google News

Flyway 3.1 Extends Schema Evolution to DB2 z/OS, Redshift and Vertica
1 December 2014, InfoQ.com

Five Security Features of RDBMS That Help Enterprises - SYS
19 December 2014, CON Media (press release)

Microsoft Extends Data Reach Across Hybrid Clouds
18 December 2014, ProgrammableWeb

FoundationDB And The New NoSQL
14 December 2014, TechCrunch

ProData Freshens Up Database Access with RDB Connect 4
2 December 2014, IT Jungle

provided by Google News

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