DBMS > Atos Standard Common Repository vs. Oracle Coherence vs. Postgres-XL vs. Yaacomo

System Properties Comparison Atos Standard Common Repository vs. Oracle Coherence vs. Postgres-XL vs. Yaacomo

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Oracle Coherence  Xexclude from comparison	Postgres-XL  Xexclude from comparison	Yaacomo  Xexclude from comparison
	This system has been discontinued and will be removed from the DB-Engines ranking.			Yaacomo seems to be discontinued and is removed from the DB-Engines ranking
Description	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	Oracles in-memory data grid solution	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database model	Document store Key-value store	Key-value store	Relational DBMS	Relational DBMS
Secondary database models			Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 1.97 Rank #129   Overall #22   Key-value stores	Score 0.53 Rank #254   Overall #117   Relational DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.oracle.com/­java/­coherence	www.postgres-xl.org	yaacomo.com
Technical documentation		docs.oracle.com/­en/­middleware/­standalone/­coherence	www.postgres-xl.org/­documentation
Developer	Atos Convergence Creators	Oracle		Q2WEB GmbH
Initial release	2016	2007	2014 since 2012, originally named StormDB	2009
Current release	1703	14.1, August 2023	10 R1, October 2018
License Commercial or Open Source	commercial	commercial	Open Source Mozilla public license	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	All OS with a Java VM	Linux macOS	Android Linux Windows
Data scheme	Schema and schema-less with LDAP views	schema-free	yes	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	no	yes XML type, but no XML query functionality	no
Secondary indexes	yes	no	yes	yes
SQL Support of SQL	no	no	yes distributed, parallel query execution	yes
APIs and other access methods	LDAP	JCache JPA RESTful HTTP API	ADO.NET JDBC native C library ODBC streaming API for large objects	JDBC ODBC
Supported programming languages	All languages with LDAP bindings	.Net C++ Java	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl
Server-side scripts Stored procedures	no	no	user defined functions
Triggers	yes	yes Live Events	yes	yes
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	Sharding	horizontal partitioning	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	yes	yes, with selectable consistency level		Source-replica replication
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	Eventual Consistency Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	yes	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	configurable	ACID MVCC	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes optionally	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes	yes	no	yes
User concepts Access control	LDAP bind authentication	authentification to access the cache via certificates or http basic authentication	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	Atos Standard Common Repository	Oracle Coherence	Postgres-XL	Yaacomo
Recent citations in the news		Create custom Event Compression Policies in Enterprise Manager to reduce event noise 21 September 2023, blogs.oracle.com Microservices with Major New Coherence and Helidon Releases 9 August 2022, blogs.oracle.com Turkcell: Processing 70 million messages per day with Coherence and WebLogic 4 January 2013, blogs.oracle.com Nike achieves scalability and performance with Oracle Coherence & Exadata 20 December 2012, blogs.oracle.com Oracle releases free open source Oracle Coherence community edition 28 June 2020, iTWire provided by Google News

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