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DBMS > Couchbase vs. Dgraph vs. PostgreSQL

System Properties Comparison Couchbase vs. Dgraph vs. PostgreSQL

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Editorial information provided by DB-Engines
NameCouchbase infoOriginally called Membase  Xexclude from comparisonDgraph  Xexclude from comparisonPostgreSQL  Xexclude from comparison
DescriptionA distributed document store with a powerful search engine and in-built operational and analytical capabilitiesDistributed and scalable native Graph DBMSWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelDocument storeGraph DBMSRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsKey-value store infooriginating from the former Membase product and supporting the Memcached protocol
Spatial DBMS infousing the Geocouch extension
Document store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score27.96
Rank#30  Overall
#5  Document stores
Score1.62
Rank#151  Overall
#12  Graph DBMS
Score622.72
Rank#4  Overall
#4  Relational DBMS
Websitewww.couchbase.comdgraph.iowww.postgresql.org
Technical documentationdocs.couchbase.comdgraph.io/­docswww.postgresql.org/­docs
DeveloperCouchbase, Inc.Dgraph Labs, Inc.PostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release201120161989 info1989: Postgres, 1996: PostgreSQL
Current releaseServer: 7.0, July 2021; Mobile: 3, February 2022; Couchbase Capella, October 202114.5, August 2022
License infoCommercial or Open SourceOpen Source infoApache version 2; Commercial licenses also availableOpen Source infoApache 2.0Open Source infoBSD
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Couchbase Capella: a fully managed database-as-a-service that eliminates database management efforts and reduces cost
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Implementation languageC, C++, Go and ErlangGoC
Server operating systemsLinux
OS X
Windows
Linux
OS X
Windows
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyes infoString, Boolean, Numberyesyes
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 infospecific XML-type available, but no XML query functionality.
Secondary indexesyesyesyes
SQL infoSupport of SQLDeclarative query language (N1QL) that extends ANSI SQL to JSON. First commercial implementation of SQL++.noyes infostandard with numerous extensions
APIs and other access methodsNative language bindings for CRUD, Query, Search and Analytics APIsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languages.Net
C
Go
Java
JavaScript infoNode.js
PHP
Python
Ruby
Scala
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresFunctions and timers in JavaScriptnouser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersyes infovia the TAP protocolnoyes
Partitioning methods infoMethods for storing different data on different nodesShardingyespartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication infoincluding cross data center replication
Source-replica replication
Synchronous replication via RaftSource-replica replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infoselectable on a per-operation basis
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
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.yes infoEphemeral bucketsno
User concepts infoAccess controlUser and Administrator separation with password-based and LDAP integrated Authenticationno infoPlanned for future releasesfine grained access rights according to SQL-standard
More information provided by the system vendor
Couchbase infoOriginally called MembaseDgraphPostgreSQL
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 MembaseDgraphPostgreSQL
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Recent citations in the news

How Couchbase Fuels Its Cloud Database Growth Engine
15 September 2022, Acceleration Economy

Couchbase Announces Second Quarter Fiscal 2023 Financial Results
7 September 2022, PR Newswire

Couchbase Research Finds That 88% of Developers are Under Pressure in the Race to the Cloud; Empowering Developers is the Critical Competitive Advantage
12 September 2022, PR Newswire

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29 September 2022, BusinessWorld Online

Couchbase (NASDAQ:BASE) Is In A Good Position To Deliver On Growth Plans
23 September 2022, Simply Wall St

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20 July 2022, PR Newswire

Dgraph GraphQL database users detail graph use cases
20 April 2021, TechTarget

Dgraph Rises to the Top Graph Database on GitHub With 11 G2 Badges and 11M Downloads
26 May 2021, businesswire.com

The Unlikely Journey of GraphQL
27 September 2022, thenewstack.io

Dgraph Labs Launches Slash GraphQL, Industry's First
10 September 2020, GlobeNewswire

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