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DBMS > Blazegraph vs. EJDB vs. IBM Db2 vs. LokiJS vs. MaxDB

System Properties Comparison Blazegraph vs. EJDB vs. IBM Db2 vs. LokiJS vs. MaxDB

Editorial information provided by DB-Engines
NameBlazegraph  Xexclude from comparisonEJDB  Xexclude from comparisonIBM Db2 infoformerly named DB2 or IBM Database 2  Xexclude from comparisonLokiJS  Xexclude from comparisonMaxDB infoformerly named Adabas-D  Xexclude from comparison
Amazon has acquired Blazegraph's domain and (probably) product. It is said that Amazon Neptune is based on Blazegraph.
DescriptionHigh-performance graph database supporting Semantic Web (RDF/SPARQL) and Graph Database (tinkerpop3, blueprints, vertex-centric) APIs with scale-out and High Availability.Embeddable document-store database library with JSON representation of queries (in MongoDB style)Common in IBM host environments, 2 different versions for host and Windows/LinuxIn-memory JavaScript DBMSA robust and reliable RDBMS optimized to run all major SAP solutions
Primary database modelGraph DBMS
RDF store
Document storeRelational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBDocument storeRelational DBMS
Secondary database modelsDocument store
RDF store infoin Db2 LUW (Linux, Unix, Windows)
Spatial DBMS infowith Db2 Spatial Extender
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.74
Rank#217  Overall
#19  Graph DBMS
#8  RDF stores
Score0.13
Rank#331  Overall
#46  Document stores
Score123.05
Rank#9  Overall
#6  Relational DBMS
Score0.44
Rank#256  Overall
#40  Document stores
Score2.15
Rank#115  Overall
#55  Relational DBMS
Websiteblazegraph.comgithub.com/­Softmotions/­ejdbwww.ibm.com/­products/­db2github.com/­techfort/­LokiJSmaxdb.sap.com
Technical documentationwiki.blazegraph.comgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdwww.ibm.com/­docs/­en/­db2techfort.github.io/­LokiJSmaxdb.sap.com/­documentation
DeveloperBlazegraphSoftmotionsIBMSAP, acquired from Software AG (Adabas-D) in 1997
Initial release200620121983 infohost version20141984
Current release2.1.5, March 201912.1, October 20167.9.10.12, February 2024
License infoCommercial or Open SourceOpen Source infoextended commercial license availableOpen Source infoGPLv2commercial infofree version is availableOpen Sourcecommercial infoLimited community edition free
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaCC and C++JavaScriptC++
Server operating systemsLinux
OS X
Windows
server-lessAIX
HP-UX
Linux
Solaris
Windows
z/OS
server-less, requires a JavaScript environment (browser, Node.js)AIX
HP-UX
Linux
Solaris
Windows
Data schemeschema-freeschema-freeyesschema-freeyes
Typing infopredefined data types such as float or dateyes infoRDF literal typesyes infostring, integer, double, bool, date, object_idyesnoyes
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 indexesyesnoyesyes infovia viewsyes
SQL infoSupport of SQLSPARQL is used as query languagenoyesnoyes
APIs and other access methodsJava API
RESTful HTTP API
SPARQL QUERY
SPARQL UPDATE
TinkerPop 3
in-process shared libraryADO.NET
JDBC
JSON style queries infoMongoDB compatible
ODBC
XQuery
JavaScript APIADO.NET
JDBC
ODBC
WebDAV
Supported programming languages.Net
C
C++
Java
JavaScript
PHP
Python
Ruby
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
C
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
JavaScript.Net
C#
Java
Perl
PHP
Python
Server-side scripts infoStored proceduresyesnoyesView functions in JavaScriptyes
Triggersnonoyesyesyes
Partitioning methods infoMethods for storing different data on different nodesShardingnoneSharding infoonly with Windows/Unix/Linux Versionnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnoneyes infowith separate tools (MQ, InfoSphere)noneSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency or Eventual Consistency depending on configurationnoneImmediate Consistency
Foreign keys infoReferential integrityyes infoRelationships in Graphsno infotypically not needed, however similar functionality with collection joins possibleyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDno infoatomic operations within a single collection possibleACID
Concurrency infoSupport for concurrent manipulation of datayesyes infoRead/Write Lockingyesyes
Durability infoSupport for making data persistentyesyesyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlSecurity and Authentication via Web Application Container (Tomcat, Jetty)nofine grained access rights according to SQL-standardnofine grained access rights according to SQL-standard

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More resources
BlazegraphEJDBIBM Db2 infoformerly named DB2 or IBM Database 2LokiJSMaxDB infoformerly named Adabas-D
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