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DBMS > EJDB vs. Galaxybase vs. H2 vs. Quasardb vs. RDFox

System Properties Comparison EJDB vs. Galaxybase vs. H2 vs. Quasardb vs. RDFox

Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonGalaxybase  Xexclude from comparisonH2  Xexclude from comparisonQuasardb  Xexclude from comparisonRDFox  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Scalable, ACID-compliant native distributed parallel graph platformFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.Distributed, high-performance timeseries databaseHigh performance knowledge graph and semantic reasoning engine
Primary database modelDocument storeGraph DBMSRelational DBMSTime Series DBMSGraph DBMS
RDF store
Secondary database modelsSpatial DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#296  Overall
#44  Document stores
Score0.07
Rank#377  Overall
#40  Graph DBMS
Score8.33
Rank#46  Overall
#30  Relational DBMS
Score0.21
Rank#322  Overall
#29  Time Series DBMS
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Websitegithub.com/­Softmotions/­ejdbgalaxybase.comwww.h2database.comquasar.aiwww.oxfordsemantic.tech
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdwww.h2database.com/­html/­main.htmldoc.quasar.ai/­masterdocs.oxfordsemantic.tech
DeveloperSoftmotionsChuanglin(Createlink) Technology Co., Ltd 浙江创邻科技有限公司Thomas MuellerquasardbOxford Semantic Technologies
Initial release20122017200520092017
Current releaseNov 20, November 20212.2.220, July 20233.14.1, January 20246.0, Septermber 2022
License infoCommercial or Open SourceOpen Source infoGPLv2commercialOpen Source infodual-licence (Mozilla public license, Eclipse public license)commercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensescommercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC and JavaJavaC++C++
Server operating systemsserver-lessLinuxAll OS with a Java VMBSD
Linux
OS X
Windows
Linux
macOS
Windows
Data schemeschema-freeStrong typed schemayesschema-freeyes infoRDF schemas
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyesyesyes infointeger and binaryyes
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.nonono
Secondary indexesnoyesyesyes infowith tags
SQL infoSupport of SQLnonoyesSQL-like query languageno
APIs and other access methodsin-process shared libraryBrowser interface
console (shell)
Graph API (Gremlin)
OpenCypher
Proprietary native API
JDBC
ODBC
HTTP APIRESTful HTTP API
SPARQL 1.1
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
Go
Java
Python
Java.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
C
Java
Server-side scripts infoStored proceduresnouser defined procedures and functionsJava Stored Procedures and User-Defined Functionsno
Triggersnoyesno
Partitioning methods infoMethods for storing different data on different nodesnoneShardingnoneSharding infoconsistent hashing
Replication methods infoMethods for redundantly storing data on multiple nodesnoneWith clustering: 2 database servers on different computers operate on identical copies of a databaseSource-replica replication with selectable replication factorreplication via a shared file system
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setups
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possibleyes infoRelationships in graphsyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentyesyesyesyes infoby using LevelDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes infoTransient modeyes
User concepts infoAccess controlnoRole-based access controlfine grained access rights according to SQL-standardCryptographically strong user authentication and audit trailRoles, resources, and access types

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More resources
EJDBGalaxybaseH2QuasardbRDFox
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