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DBMS > CouchDB vs. OpenQM vs. RavenDB

System Properties Comparison CouchDB vs. OpenQM vs. RavenDB

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Editorial information provided by DB-Engines
NameCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonRavenDB  Xexclude from comparison
DescriptionA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.QpenQM is a high-performance, self-tuning, multi-value DBMSOpen Source Operational and Transactional Enterprise NoSQL Document Database
Primary database modelDocument storeMultivalue DBMSDocument store
Secondary database modelsSpatial DBMS infousing the Geocouch extensionGraph DBMS
Spatial DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score17.16
Rank#41  Overall
#7  Document stores
Score0.23
Rank#284  Overall
#10  Multivalue DBMS
Score3.47
Rank#93  Overall
#16  Document stores
Websitecouchdb.apache.orgwww.openqm.comravendb.net
Technical documentationdocs.couchdb.org/­en/­stablewww.openqm.com/­support/­documentationravendb.net/­docs
DeveloperApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerMartin PhillipsHibernating Rhinos
Initial release200519932010
Current release3.2.2, April 20223.4-125.3, November 2021
License infoCommercial or Open SourceOpen Source infoApache version 2Open Source infoGPLv2, extended commercial license availableOpen Source infoAGPL version 3, commercial license available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageErlangC#
Server operating systemsAndroid
BSD
Linux
OS X
Solaris
Windows		AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows		Linux
macOS
Raspberry Pi
Windows
Data schemeschema-freeyes infowith some exceptionsschema-free
Typing infopredefined data types such as float or datenono
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.noyes
Secondary indexesyes infovia viewsyesyes
SQL infoSupport of SQLnonoSQL-like query language (RQL)
APIs and other access methodsRESTful HTTP/JSON API.NET Client API
Java Client API
Python Client API
RESTful HTTP API
Supported programming languagesC
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk		.Net
Basic
C
Java
Objective C
PHP
Python		.Net
C#
Go
Java
JavaScript (Node.js)
Python
Ruby
Server-side scripts infoStored proceduresView functions in JavaScriptyesyes
Triggersyesyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoimproved architecture with release 2.0yesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication		yesMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnoyes infoMapReduce functions can be defined in Linq
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single document possibleACIDACID, Cluster-wide transaction available
Concurrency infoSupport for concurrent manipulation of datayes infostrategy: optimistic lockingyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess rights for users can be defined per databaseAccess rights can be defined down to the item levelAccess control on document level using the Authorization Bundle
More information provided by the system vendor
CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"OpenQM infoalso called QMRavenDB
Specific characteristicsRavenDB is the pioneer NoSQL Document Database that is fully transactional (ACID)...
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Competitive advantagesRavenDB is easy to setup and secure. You can do it in a matter of minutes . Easy...
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Typical application scenariosIoT for Edge Deployments Fraud Detection Recommendation Engines Product Catalogs...
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Key customersToyota, Capgemini, Vodafone, Medicaid, Asos, Nomura, RMS Automotive, MSNBC, Pluralsight,...
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Market metrics2 million+ downloads 1000+ customers including Fortune 500 large enterprises
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Licensing and pricing modelsRavenDB is available on-premise and in the cloud. RavenDB Cloud is available on AWS...
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CouchDB infostands for "Cluster Of Unreliable Commodity Hardware"OpenQM infoalso called QMRavenDB
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