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DBMS > Datomic vs. Neo4j vs. RDFox

System Properties Comparison Datomic vs. Neo4j vs. RDFox

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Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonNeo4j  Xexclude from comparisonRDFox  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityScalable, ACID-compliant graph database designed with a high-performance distributed cluster architecture, available in self-hosted and cloud offeringsHigh performance knowledge graph and semantic reasoning engine
Primary database modelRelational DBMSGraph DBMSGraph DBMS
RDF store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.48
Rank#143  Overall
#65  Relational DBMS
Score46.15
Rank#20  Overall
#1  Graph DBMS
Score0.26
Rank#291  Overall
#23  Graph DBMS
#12  RDF stores
Websitewww.datomic.comneo4j.comwww.oxfordsemantic.tech
Technical documentationdocs.datomic.comneo4j.com/­docsdocs.oxfordsemantic.tech
DeveloperCognitectNeo4j, Inc.Oxford Semantic Technologies
Initial release201220072017
Current release1.0.7180, July 20245.23, August 20246.0, Septermber 2022
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoGPL version3, commercial licenses availablecommercial
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.
Implementation languageJava, ClojureJava, ScalaC++
Server operating systemsAll OS with a Java VMLinux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
Linux
macOS
Windows
Data schemeyesschema-free and schema-optionalyes infoRDF schemas
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.no
Secondary indexesyesyes infopluggable indexing subsystem, by default Apache Lucene
SQL infoSupport of SQLnonono
APIs and other access methodsRESTful HTTP APIBolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
RESTful HTTP API
SPARQL 1.1
Supported programming languagesClojure
Java
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
C
Java
Server-side scripts infoStored proceduresyes infoTransaction Functionsyes infoUser defined Procedures and Functions
TriggersBy using transaction functionsyes infovia event handler
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersyes using Neo4j Fabric
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlyreplication via a shared file system
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
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 in stand-alone mode, Eventual Consistency in replicated setups
Foreign keys infoReferential integritynoyes infoRelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes inforecommended only for testing and developmentyes
User concepts infoAccess controlnoUsers, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)Roles, resources, and access types
More information provided by the system vendor
DatomicNeo4jRDFox
News

A Practical Experimentation of GraphRAG and Agentic Architecture With NeoConverse
27 March 2025

New in Neo4j AuraDB: Direct Import From Cloud Data Warehouses
26 March 2025

Graphiti: Knowledge Graph Memory for a Post-RAG Agentic World
24 March 2025

What Are the Best Graph Database Use Cases in 2025?
20 March 2025

Modeling Agent Memory
20 March 2025

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More resources
DatomicNeo4jRDFox
DB-Engines blog posts

Applying Graph Analytics to Game of Thrones
12 June 2019, Amy Hodler & Mark Needham, Neo4j (guest author)

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

The openCypher Project: Help Shape the SQL for Graphs
22 December 2015, Emil Eifrem (guest author)

show all

Recent citations in the news

Brazilian challenger Nubank acquires firm behind Clojure and Datomic
26 March 2025, FinTech Futures

Brazil’s Nubank acquires US software firm Cognitect, creator of Clojure and Datomic
24 July 2020, LatamList

Rich Hickey on Datomic, CAP and ACID
21 January 2013, InfoQ.com

Zoona Case Study
16 December 2017, AWS Blog

Nubank IPO raises US$ 2.6 billion in landmark deal for Brazilian fintech
8 December 2021, iupana

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Free Software Foundation rides to defend AGPLv3 against Neo4j license add-ons
4 March 2025, The Register

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Neo4j Surpasses $200M in Revenue, Accelerates Leadership in GenAI-Driven Graph Technology
19 November 2024, PR Newswire

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28 November 2024, ArcticStartup

Data Science Firm Neo4j Reportedly Prepping IPO
19 November 2024, PYMNTS.com

provided by Google News

Samsung Electronics Announces Acquisition of Oxford Semantic Technologies, UK-Based Knowledge Graph Startup
18 July 2024, Samsung Global Newsroom

Samsung buys UK startup Oxford Semantic to boost ‘personalised AI experiences’
18 July 2024, TNW

Samsung acquires knowledge graph startup Oxford Semantics
18 July 2024, The Stack

University spin-out Oxford Semantic Technologies acquired by Samsung Electronics
16 July 2024, University of Oxford

Use semantic reasoning to infer new facts from your RDF graph by integrating RDFox with Amazon Neptune
20 February 2023, AWS Blog

provided by Google News



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