DBMS > Atos Standard Common Repository vs. Blazegraph vs. OpenQM vs. VelocityDB

System Properties Comparison Atos Standard Common Repository vs. Blazegraph vs. OpenQM vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Blazegraph  Xexclude from comparison	OpenQM also called QM  Xexclude from comparison	VelocityDB  Xexclude from comparison
	This system has been discontinued and will be removed from the DB-Engines ranking.	Amazon has acquired Blazegraph's domain and (probably) product. It is said that Amazon Neptune is based on Blazegraph.
Description	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	High-performance graph database supporting Semantic Web (RDF/SPARQL) and Graph Database (tinkerpop3, blueprints, vertex-centric) APIs with scale-out and High Availability.	QpenQM is a high-performance, self-tuning, multi-value DBMS	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Document store Key-value store	Graph DBMS RDF store	Multivalue DBMS	Graph DBMS Object oriented DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.81 Rank #213   Overall #19   Graph DBMS #8   RDF stores	Score 0.34 Rank #284   Overall #10   Multivalue DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	blazegraph.com	www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm	velocitydb.com
Technical documentation		wiki.blazegraph.com		velocitydb.com/­UserGuide
Developer	Atos Convergence Creators	Blazegraph	Rocket Software, originally Martin Phillips	VelocityDB Inc
Initial release	2016	2006	1993	2011
Current release	1703	2.1.5, March 2019	3.4-12	7.x
License Commercial or Open Source	commercial	Open Source extended commercial license available	Open Source GPLv2, extended commercial license available	commercial
Cloud-based only Only available as a cloud service	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java	Java		C#
Server operating systems	Linux	Linux OS X Windows	AIX FreeBSD Linux macOS Raspberry Pi Solaris Windows	Any that supports .NET
Data scheme	Schema and schema-less with LDAP views	schema-free	yes with some exceptions	yes
Typing predefined data types such as float or date	optional	yes RDF literal types		yes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	yes		yes	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	no	SPARQL is used as query language	no	no
APIs and other access methods	LDAP	Java API RESTful HTTP API SPARQL QUERY SPARQL UPDATE TinkerPop 3		.Net
Supported programming languages	All languages with LDAP bindings	.Net C C++ Java JavaScript PHP Python Ruby	.Net Basic C Java Objective C PHP Python	.Net
Server-side scripts Stored procedures	no	yes	yes	no
Triggers	yes	no	yes	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	Sharding	yes	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	yes	yes
MapReduce Offers an API for user-defined Map/Reduce methods		no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency or Eventual Consistency depending on configuration	Immediate Consistency or Eventual Consistency depending on configuration	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes Relationships in Graphs	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	ACID	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes			yes
User concepts Access control	LDAP bind authentication	Security and Authentication via Web Application Container (Tomcat, Jetty)	Access rights can be defined down to the item level	Based on Windows Authentication
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More resources
	Atos Standard Common Repository	Blazegraph	OpenQM also called QM	VelocityDB
Recent citations in the news	Infographic: What makes a Mobile Operator's setup future proof? 10 February 2024, Atos provided by Google News	Back to the future: Does graph database success hang on query language? 5 March 2018, ZDNet Harnessing GPUs Delivers a Big Speedup for Graph Analytics 15 December 2015, Datanami This AI Paper Introduces A Comprehensive RDF Dataset With Over 26 Billion Triples Covering Scholarly Data Across All Scientific Disciplines 19 August 2023, MarkTechPost Faster with GPUs: 5 turbocharged databases 26 September 2016, InfoWorld provided by Google News

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