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DBMS > EJDB vs. NCache vs. Neo4j vs. RethinkDB

System Properties Comparison EJDB vs. NCache vs. Neo4j vs. RethinkDB

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonNCache  Xexclude from comparisonNeo4j  Xexclude from comparisonRethinkDB  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Open-Source and Enterprise in-memory Key-Value StoreScalable, ACID-compliant graph database designed with a high-performance distributed cluster architecture, available in self-hosted and cloud offeringsDBMS for the Web with a mechanism to push updated query results to applications in realtime.
Primary database modelDocument storeKey-value storeGraph DBMSDocument store
Secondary database modelsDocument store
Search engine infoUsing distributed Lucene
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#296  Overall
#44  Document stores
Score0.96
Rank#195  Overall
#29  Key-value stores
Score44.89
Rank#21  Overall
#1  Graph DBMS
Score2.66
Rank#107  Overall
#20  Document stores
Websitegithub.com/­Softmotions/­ejdbwww.alachisoft.com/­ncacheneo4j.comrethinkdb.com
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdwww.alachisoft.com/­resources/­docsneo4j.com/­docsrethinkdb.com/­docs
DeveloperSoftmotionsAlachisoftNeo4j, Inc.The Linux Foundation infosince July 2017
Initial release2012200520072009
Current release5.3.3, April 20245.20, May 20242.4.1, August 2020
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoEnterprise Edition availableOpen Source infoGPL version3, commercial licenses availableOpen Source infoApache Version 2
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Neo4j Aura: Neo4j’s fully managed cloud service: The zero-admin, always-on graph database for cloud developers.
Implementation languageCC#, .NET, .NET Core, JavaJava, ScalaC++
Server operating systemsserver-lessLinux
Windows
Linux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
Linux
OS X
Windows
Data schemeschema-freeschema-freeschema-free and schema-optionalschema-free
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idpartial infoSupported data types are Lists, Queues, Hashsets, Dictionary and Counteryesyes infostring, binary, float, bool, date, geometry
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.nono
Secondary indexesnoyesyes infopluggable indexing subsystem, by default Apache Luceneyes
SQL infoSupport of SQLnoSQL-like query syntax and LINQ for searching the cache. Cache Synchronization with SQL Server using SQL dependency.nono
APIs and other access methodsin-process shared libraryIDistributedCache
JCache
LINQ
Proprietary native API
Bolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
.Net
.Net Core
C#
Java
JavaScript (Node.js)
Python
Scala
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
C infocommunity-supported driver
C# infocommunity-supported driver
C++ infocommunity-supported driver
Clojure infocommunity-supported driver
Dart infocommunity-supported driver
Erlang infocommunity-supported driver
Go infocommunity-supported driver
Haskell infocommunity-supported driver
Java infoofficial driver
JavaScript (Node.js) infoofficial driver
Lisp infocommunity-supported driver
Lua infocommunity-supported driver
Objective-C infocommunity-supported driver
Perl infocommunity-supported driver
PHP infocommunity-supported driver
Python infoofficial driver
Ruby infoofficial driver
Scala infocommunity-supported driver
Server-side scripts infoStored proceduresnono infosupport for stored procedures with SQL-Server CLRyes infoUser defined Procedures and Functions
Triggersnoyes infoNotificationsyes infovia event handlerClient-side triggers through changefeeds
Partitioning methods infoMethods for storing different data on different nodesnoneyesyes using Neo4j FabricSharding inforange based
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes, with selectable consistency levelCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlySource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Strong Eventual Consistency over WAN with Conflict Resolution using Bridge Topology
Causal and Eventual Consistency configurable in Causal Cluster setup
Immediate Consistency in stand-alone mode
Immediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possiblenoyes infoRelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanooptimistic locking and pessimistic lockingACIDAtomic single-document operations
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyes infoMVCC based
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnoAuthentication to access the cache via Active Directory/LDAP (possible roles: user, administrator)Users, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)yes infousers and table-level permissions
More information provided by the system vendor
EJDBNCacheNeo4jRethinkDB
Specific characteristicsNCache has been the market leader in .NET Distributed Caching since 2005 . NCache...
» more
Neo4j delivers graph technology that has been battle tested for performance and scale...
» more
Competitive advantagesNCache is 100% .NET/ .NET Core based which fully supports ASP.NET Core Sessions ,...
» more
Neo4j is the market leader, graph database category creator, and the most widely...
» more
Typical application scenariosNCache enables industries like retail, finance, banking IoT, travel, ecommerce, healthcare...
» more
Real-Time Recommendations Master Data Management Identity and Access Management Network...
» more
Key customersBank of America, Citi, Natures Way, Charter Spectrum, Barclays, Henry Schein, GBM,...
» more
Over 800 commercial customers and over 4300 startups use Neo4j. Flagship customers...
» more
Market metricsMarket Leader in .NET Distributed Caching since 2005.
» more
Neo4j boasts the world's largest graph database ecosystem with more than 140 million...
» more
Licensing and pricing modelsNCache Open Source is free on an as-is basis without any support. NCache Enterprise...
» more
GPL v3 license that can be used all the places where you might use MySQL. Neo4j Commercial...
» more
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