DBMS > Atos Standard Common Repository vs. Postgres-XL vs. SiteWhere vs. VelocityDB

System Properties Comparison Atos Standard Common Repository vs. Postgres-XL vs. SiteWhere vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Postgres-XL  Xexclude from comparison	SiteWhere  Xexclude from comparison	VelocityDB  Xexclude from comparison
	This system has been discontinued and will be removed from the DB-Engines ranking.
Description	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	M2M integration platform for persisting/querying time series data	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	Relational DBMS	Time Series DBMS	Graph DBMS Object oriented DBMS
Secondary database models		Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.06 Rank #383   Overall #43   Time Series DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.postgres-xl.org	github.com/­sitewhere/­sitewhere	velocitydb.com
Technical documentation		www.postgres-xl.org/­documentation	sitewhere1.sitewhere.io/­index.html	velocitydb.com/­UserGuide
Developer	Atos Convergence Creators		SiteWhere	VelocityDB Inc
Initial release	2016	2014 since 2012, originally named StormDB	2010	2011
Current release	1703	10 R1, October 2018		7.x
License Commercial or Open Source	commercial	Open Source Mozilla public license	Open Source Common Public Attribution License Version 1.0	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	C	Java	C#
Server operating systems	Linux	Linux macOS	Linux OS X Windows	Any that supports .NET
Data scheme	Schema and schema-less with LDAP views	yes	predefined scheme	yes
Typing predefined data types such as float or date	optional	yes	yes	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 XML type, but no XML query functionality	no	no
Secondary indexes	yes	yes	no	yes
SQL Support of SQL	no	yes distributed, parallel query execution	no	no
APIs and other access methods	LDAP	ADO.NET JDBC native C library ODBC streaming API for large objects	HTTP REST	.Net
Supported programming languages	All languages with LDAP bindings	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl		.Net
Server-side scripts Stored procedures	no	user defined functions		no
Triggers	yes	yes		Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	horizontal partitioning	Sharding based on HBase	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes		selectable replication factor based on HBase
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	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	ACID MVCC	no	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	no	no	yes
User concepts Access control	LDAP bind authentication	fine grained access rights according to SQL-standard	Users with fine-grained authorization concept	Based on Windows Authentication
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More resources
	Atos Standard Common Repository	Postgres-XL	SiteWhere	VelocityDB
Recent citations in the news	Infographic: What makes a Mobile Operator's setup future proof? 10 February 2024, Atos provided by Google News		SiteWhere: An open platform for connected devices 11 July 2017, Open Source For You Ten Popular IoT Platforms You Should be Aware of 27 March 2023, Open Source For You 11 Best Open source IoT Platforms To Develop Smart Projects 9 March 2023, H2S Media provided by Google News

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