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DBMS > Couchbase vs. Datomic

System Properties Comparison Couchbase vs. Datomic

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Our visitors often compare Couchbase and Datomic with PostgreSQL, MongoDB and Microsoft Azure Cosmos DB.

Editorial information provided by DB-Engines
NameCouchbase infoOriginally called Membase  Xexclude from comparisonDatomic  Xexclude from comparison
DescriptionJSON-based document store derived from CouchDB with a Memcached-compatible interfaceDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durability
Primary database modelDocument storeRelational DBMS
Secondary database modelsKey-value store infooriginating from the former Membase product and supporting the Memcached protocol
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score32.04
Rank#23  Overall
#3  Document stores
Score1.98
Rank#111  Overall
#54  Relational DBMS
Websitewww.couchbase.comwww.datomic.com
Technical documentationdocs.couchbase.comdocs.datomic.com
DeveloperCouchbase, Inc.Cognitect
Initial release20112012
Current releaseServer: 6.0, October 2018; Mobile: 2.5, May 2019; Couchbase Autonomous Operator: 1.2, May 20190.9.5951, July 2019
License infoCommercial or Open SourceOpen Source infoApache version 2; Commercial licenses also availablecommercial infolimited edition free
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC, C++, Go and ErlangJava, Clojure
Server operating systemsLinux
OS X
Windows
All OS with a Java VM
Data schemeschema-freeyes
Typing infopredefined data types such as float or dateyes infoString, Boolean, Numberyes
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.no
Secondary indexesyesyes
SQL infoSupport of SQLDeclarative query language (N1QL) that extends ANSI SQL to JSON. First commercial implementation of SQL++.no
APIs and other access methodsNative language bindings for CRUD, Query, Search and Analytics APIsRESTful HTTP API
Supported programming languages.Net
C
Clojure
ColdFusion
Erlang
Go
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
Tcl
Clojure
Java
Server-side scripts infoStored proceduresFunctions and timers in JavaScriptyes infoTransaction Functions
Triggersyes infovia the TAP protocolBy using transaction functions
Partitioning methods infoMethods for storing different data on different nodesShardingnone infoBut extensive use of caching in the application peers
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-master replication infoincluding cross data center replication
Master-slave replication
none infoBut extensive use of caching in the application peers
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infoselectable on a per-operation basis
Immediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataSingle-document ACID transactionsACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infoEphemeral bucketsyes inforecommended only for testing and development
User concepts infoAccess controlUser and Administrator separation with password-based and LDAP integrated Authenticationno
More information provided by the system vendor
Couchbase infoOriginally called MembaseDatomic
Specific characteristicsDeveloped as an alternative to traditionally inflexible relational databases, Couchbase...
» more
Competitive advantagesCouchbase was architected with several differentiated capabilities: Shared-nothing,...
» more
Typical application scenariosCustomer 360 for user profile, session store and data aggregation (Comcast, Equifax,...
» more
Key customersAmadeus, AT&T, BD (Becton, Dickinson and Company), Carrefour, Cisco, Comcast, Disney,...
» more
Market metricsNamed a leader in the Forrester Wave™: Big Data NoSQL, Q1 2019 Over 10M downloads...
» more
Licensing and pricing modelsThe Community Edition (CE) of Couchbase Server and Couchbase Mobile are available...
» more

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More resources
Couchbase infoOriginally called MembaseDatomic
DB-Engines blog posts

Couchbase climbs up the DB-Engines Ranking, increasing its popularity by 10% every month
2 June 2014, Matthias Gelbmann

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