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DBMS > Dgraph vs. Neo4j vs. PostgreSQL

System Properties Comparison Dgraph vs. Neo4j vs. PostgreSQL

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Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonNeo4j  Xexclude from comparisonPostgreSQL  Xexclude from comparison
DescriptionDistributed and scalable native Graph DBMSOpen source graph databaseWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelGraph DBMSGraph DBMSRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.40
Rank#140  Overall
#11  Graph DBMS
Score52.16
Rank#19  Overall
#1  Graph DBMS
Score550.96
Rank#4  Overall
#4  Relational DBMS
Websitedgraph.ioneo4j.comwww.postgresql.org
Technical documentationdgraph.io/­docsneo4j.com/­docswww.postgresql.org/­docs
DeveloperDgraph Labs, Inc.Neo4j, Inc.PostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release201620071989 info1989: Postgres, 1996: PostgreSQL
Current release4.2.3, January 202113.2 , February 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoGPL version3, commercial licenses availableOpen 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.
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Implementation languageGoJava, ScalaC
Server operating systemsLinux
OS X
Windows
Linux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeschema-freeschema-free and schema-optionalyes
Typing infopredefined data types such as float or dateyesyesyes
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 indexesyesyes infopluggable indexing subsystem, by default Apache Luceneyes
SQL infoSupport of SQLnonoyes infostandard with numerous extensions
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
Bolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresnoyes infoUser defined Procedures and Functionsuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersnoyes infovia event handleryes
Partitioning methods infoMethods for storing different data on different nodesyesnonepartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via RaftCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlySource-replica replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyCausal and Eventual Consistency configurable in Causal Cluster setup
Immediate Consistency in stand-alone mode
Immediate Consistency
Foreign keys infoReferential integritynoyes infoRelationships in graphsyes
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.no
User concepts infoAccess controlno infoPlanned for future releasesUsers, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)fine grained access rights according to SQL-standard
More information provided by the system vendor
DgraphNeo4jPostgreSQL
Specific characteristicsNeo4j is a native graph database platform that is built to store, query, analyze...
» more
Competitive advantagesHorizontally scalable transactional graph database with fast arbitrary-depth joins...
» more
Neo4j database is the only transactional database that combines everything you need...
» more
Typical application scenariosReal-Time Recommendations Master Data Management Identity and Access Management Network...
» more
Key customersOver 300 commercial customers and over 750 startups use Neo4j. Flagship customers...
» more
Market metricsNeo4j boasts the world's largest graph database ecosystem with more than a 15 million...
» more
Licensing and pricing modelsGPL v3 license that can be used all the places where you might use MySQL. Neo4j Commercial...
» more
News

Top 10 Use Cases: Empowering Network and IT Operations Management
22 February 2021

This Week in Neo4j – Structured data embedded in web pages, Speaker Listener LPA, Neo4j at NASA
20 February 2021

Graphs for Artificial Intelligence and Machine Learning
18 February 2021

Top 10 Use Cases: Supply Chain Management
15 February 2021

This Week in Neo4j – English WordNet Graph, Supervised Machine Learning, Using Neo4j with GraalVM
13 February 2021

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
DgraphNeo4jPostgreSQL
DB-Engines blog posts

Applying Graph Analytics to Game of Thrones
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2 March 2016, Paul Andlinger

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22 December 2015, Emil Eifrem (guest author)

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Recent citations in the news

Dgraph Labs Launches Slash Enterprise: Fully Hosted, Serverless Version of World's Most Advanced Graph Database
3 December 2020, GlobeNewswire

Dgraph Labs Now Available on Auth0 Marketplace
22 September 2020, GlobeNewswire

Dgraph Labs Launches Slash GraphQL, Industry's First GraphQL-Native Database Backend-As-A-Service
10 September 2020, GlobeNewswire

China's Zillow alternative goes open source to scale a 10 billion node graph database
4 November 2020, TechRepublic

Dgraph raises $11.5 million for scalable graph database solutions
31 July 2019, VentureBeat

provided by Google News

Neo4j Continues Exceptional Growth in 2020, Bolstered by Customer Wins, Mainstream Adoption and Community Expansion
17 February 2021, PRNewswire

Introducing Neo4j Aura Enterprise: The Cloud Graph Database Chosen by Leading Brands
27 January 2021, PRNewswire

Neo4j brings Graph Database to the Cloud -
28 January 2021, Enterprise Times

Graph Database Market Latest Technological Advancements 2026: IBM, Microsoft, Oracle, AWS, Neo4j, OrientDB, TIBCO, Franz, OpenLink Software, MarkLogic, TigerGraph, DataStax, Ontotext, Stardog, Cray, ArangoDB , Bitnine, Objectivity, Memgraph, Cambridge Semantics, Fluree, and Blazegraph. – NeighborWebSJ
22 February 2021, NeighborWebSJ

Graph Databases Software Market to have a Major Impact on the Market During 2021-2027 | Neo4j, ArangoDB, SAP, Twitter, The Apache Software Foundation – FLA News
23 February 2021, FLA News

provided by Google News

AWS and Rackspace Lose 700 PostgreSQL Databases to Oracle Autonomous Database
25 February 2021, Cloud Wars

AWS Announces Amazon Aurora Supports PostgreSQL 12 (infoq.com)
7 February 2021, InfoQ.com

SQL Market Technological Progress, Regional Outlook by players – PostgreSQL, Oracle Database, Sybase, MarkLogic Corporation, Basho Technologies, MariaDB, MySQL, Microsoft, MongoDB
25 February 2021, NY Market Reports

Global NoSQL Market 2020 Industry Segmentation: Microsoft SQL Server, MySQL, MongoDB, PostgreSQL, Oracle Database – KSU | The Sentinel Newspaper
24 February 2021, KSU | The Sentinel Newspaper

EDB Caps Successful Year of Hypergrowth
18 February 2021, Business Wire

provided by Google News

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