DB-EnginesExtremeDB: the first and only COTS deterministic embedded database management system for mission- and safety-critical hard real-time applicationsEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > Dgraph vs. Memgraph vs. NuoDB vs. Oracle NoSQL vs. VelocityDB

System Properties Comparison Dgraph vs. Memgraph vs. NuoDB vs. Oracle NoSQL vs. VelocityDB

Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonMemgraph  Xexclude from comparisonNuoDB  Xexclude from comparisonOracle NoSQL  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionDistributed and scalable native Graph DBMSA hybrid, in-memory first, distributed graph DBMS delivering high-performance on analytical and transactional workloads at enterprise scaleNuoDB is a webscale distributed database that supports SQL and ACID transactionsA multi-model, scalable, distributed NoSQL database, designed to provide highly reliable, flexible, and available data management across a configurable set of storage nodesA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelGraph DBMSGraph DBMSRelational DBMSDocument store
Key-value store
Relational DBMS
Graph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.51
Rank#139  Overall
#11  Graph DBMS
Score0.37
Rank#259  Overall
#20  Graph DBMS
Score1.00
Rank#176  Overall
#86  Relational DBMS
Score4.41
Rank#81  Overall
#14  Document stores
#13  Key-value stores
#44  Relational DBMS
Score0.06
Rank#318  Overall
#32  Graph DBMS
#17  Object oriented DBMS
Websitedgraph.iomemgraph.comnuodb.comwww.oracle.com/­database/­technologies/­related/­nosql.htmlvelocitydb.com
Technical documentationdgraph.io/­docsdocs.memgraph.comdoc.nuodb.comdocs.oracle.com/­en/­database/­other-databases/­nosql-database/­index.htmlvelocitydb.com/­UserGuide
DeveloperDgraph Labs, Inc.Memgraph LtdNuoDB, Inc.OracleVelocityDB Inc
Initial release20162017201320112011
Current release21.2, September 20217.x
License infoCommercial or Open SourceOpen Source infoApache 2.0commercial infoFree license availablecommercial infolimited edition freeOpen Source infoProprietary for Enterprise Edition (Oracle Database EE license has Oracle NoSQL database EE covered: details)commercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoC and C++C++JavaC#
Server operating systemsLinux
OS X
Windows
Linuxhosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
Linux
Solaris SPARC/x86
Any that supports .NET
Data schemeschema-freeschema-free and schema-optionalyesSupport Fixed schema and Schema-less deployment with the ability to interoperate between them.yes
Typing infopredefined data types such as float or dateyesyesyesoptionalyes
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.nonononono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLnonoyesSQL-like DML and DDL statementsno
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
Bolt protocol
Cypher query language
ADO.NET
JDBC
ODBC
RESTful HTTP API.Net
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
C
C++
Elixir
Go
Haskell
Java
JavaScript
PHP
Python
Ruby
Scala
.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
C
C#
Go
Java
JavaScript (Node.js)
Python
.Net
Server-side scripts infoStored proceduresnoJava, SQLnono
TriggersnoyesnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesyesSharding infodynamic graph partitioningdata is dynamically stored/cached on the nodes where it is read/writtenShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via RaftMulti-source replication using RAFTyes infoManaged transparently by NuoDBElectable source-replica replication per shard. Support distributed global deployment with Multi-region table feature
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency infodepending on configuration
Immediate Consistency
Foreign keys infoReferential integritynoyes inforelationships in graphsyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infowith snapshot isolationACID infotunable commit protocolconfigurable infoACID within a storage node (=shard)ACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yes infoMVCCyesyes
Durability infoSupport for making data persistentyesyes infowith periodic snapshot and write-ahead logging (WAL) of changesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoTemporary tableyes infooff heap cacheyes
User concepts infoAccess controlno infoPlanned for future releasesUsers, roles and permissionsStandard SQL roles/ privileges, Administrative UsersAccess rights for users and rolesBased on Windows Authentication
More information provided by the system vendor
DgraphMemgraphNuoDBOracle NoSQLVelocityDB
Specific characteristicsMemgraph directly connects to your streaming infrastructure so you and your team...
» more
Competitive advantagesHorizontally scalable transactional graph database with fast arbitrary-depth joins...
» more
Business Source License ensures a future for the Memgraph community MAGE algorithm...
» more
Typical application scenariosGraph algorithms in bioinformatics Social network analysis Cryptocurrency network...
» more
Licensing and pricing modelsYou can check out our pricing model and licenses on the company website .
» more

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.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
DgraphMemgraphNuoDBOracle NoSQLVelocityDB
DB-Engines blog posts

Meet some database management systems you are likely to hear more about in the future
4 August 2014, Paul Andlinger

show all

Recent citations in the news

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

Gary Hagmueller Joins Dgraph Labs To Lead the Graph Platform Market Disruption
8 April 2021, Business Wire

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

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

Graph database reinvented: Dgraph secures $11.5M to pursue its unique and opinionated path
31 July 2019, ZDNet

provided by Google News

Graph database company Memgraph raises $9.34M
5 October 2021, VentureBeat

2022 technology trend review, part two: AI and graphs
21 December 2021, ZDNet

ArangoDB brings yet more money into graph database market with $27.8M round
6 October 2021, SiliconANGLE News

The untapped potential of HPC + graph computing
30 October 2021, VentureBeat

On mission to make audio and video files searchable, Omnisearch raises $565,000 CAD
8 October 2021, BetaKit

provided by Google News

Dassault Systèmes Announces the Acquisition of NuoDB, a Cloud-Native Distributed SQL Database Leader
25 November 2020, Business Wire

NuoDB 4.0 improves cloud-native database capabilities
31 July 2019, TechTarget

Dassault Systèmes Announces the Acquisition of NuoDB
3 December 2020, ARC Viewpoints

NuoDB Partners with Rancher Labs to Deliver a Cloud-native SQL Database Across Multi-Cloud Environments for Hong Kong FinTech Leader WeLab
19 November 2019, GlobeNewswire

NuoDB empowers distributed database users to optimize cloud and container resources with new graphical dashboard
10 April 2018, Daily Host News

provided by Google News

The 10 Major Players in Cloud Database Management Systems, 2021
10 January 2022, Solutions Review

Oracle NoSQL database comes to the cloud
2 April 2020, TechTarget

First look: Oracle NoSQL Database
16 November 2011, infoworld.com

Oracle Announces 5 Key Enhancements to NoSQL Database
25 May 2016, Database Trends and Applications

Oracle Announces NoSQL Database Cloud Service
1 April 2020, Database Trends and Applications

provided by Google News

Job opportunities

Data Scientist, Senior
Booz Allen Hamilton, Annapolis Junction, MD

Developer/Analyst, Senior (NJUS)
NetJets Services, Inc., Columbus, OH

Innovation Lab Lead Developer - Cloud/AWS
NetJets Services, Inc., Columbus, OH

Backend Developer - SaaS (REMOTE) - Intermediate to Senior
Leadr, Inc, Remote

Software Engineer - Senior (Go/Back End)
Securiport, Washington, DC

Senior Graph DB Engineer
Nira, Remote

Technical Writer -NuoDB
Dassault Systèmes, Waltham, MA

NuoDB Software Engineer
Dassault Systèmes, Cambridge, MA

Data Engineer - Customer Packaging Experience
Amazon.com Services LLC, Seattle, WA

Cyber Security Engineer – I , II, and III
Melkotech, Dahlgren, VA

Software Engineer - Database and Systems Technologies
Oracle, United States

Business Intelligence Engineer, Business Engagement and Strategy Employee Experience
Amazon.com Services LLC, Seattle, WA

Software Engineer (Front-End)
eBay Inc., San Francisco, CA

jobs by Indeed



Share this page

Featured Products

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 80GB free.

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Vertica logo

Vertica Accelerator. The fastest analytics and machine learning, delivered as SaaS, with automated setup, administration, and management. Free trial.

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

Couchbase logo

The modern database for enterprise applications. Build fast. Scale Big. Save more.
Get started today.

Present your product here