DBMS > Atos Standard Common Repository vs. EJDB vs. Lovefield vs. Oracle Coherence

System Properties Comparison Atos Standard Common Repository vs. EJDB vs. Lovefield vs. Oracle Coherence

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	EJDB  Xexclude from comparison	Lovefield  Xexclude from comparison	Oracle Coherence  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	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	Embeddable relational database for web apps written in pure JavaScript	Oracles in-memory data grid solution
Primary database model	Document store Key-value store	Document store	Relational DBMS	Key-value store
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.31 Rank #296   Overall #44   Document stores	Score 0.33 Rank #286   Overall #131   Relational DBMS	Score 1.97 Rank #129   Overall #22   Key-value stores
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	github.com/­Softmotions/­ejdb	google.github.io/­lovefield	www.oracle.com/­java/­coherence
Technical documentation		github.com/­Softmotions/­ejdb/­blob/­master/­README.md	github.com/­google/­lovefield/­blob/­master/­docs/­spec_index.md	docs.oracle.com/­en/­middleware/­standalone/­coherence
Developer	Atos Convergence Creators	Softmotions	Google	Oracle
Initial release	2016	2012	2014	2007
Current release	1703		2.1.12, February 2017	14.1, August 2023
License Commercial or Open Source	commercial	Open Source GPLv2	Open Source Apache 2.0	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	JavaScript	Java
Server operating systems	Linux	server-less	server-less, requires a JavaScript environment (browser, Node.js) tested with Chrome, Firefox, IE, Safari	All OS with a Java VM
Data scheme	Schema and schema-less with LDAP views	schema-free	yes	schema-free
Typing predefined data types such as float or date	optional	yes string, integer, double, bool, date, object_id	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	no
Secondary indexes	yes	no	yes	no
SQL Support of SQL	no	no	SQL-like query language via JavaScript builder pattern	no
APIs and other access methods	LDAP	in-process shared library		JCache JPA RESTful HTTP API
Supported programming languages	All languages with LDAP bindings	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	JavaScript	.Net C++ Java
Server-side scripts Stored procedures	no	no	no	no
Triggers	yes	no	Using read-only observers	yes Live Events
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	none	none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	none	none	yes, with selectable consistency level
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
Foreign keys Referential integrity	no	no typically not needed, however similar functionality with collection joins possible	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	no	ACID	configurable
Concurrency Support for concurrent manipulation of data	yes	yes Read/Write Locking	yes	yes
Durability Support for making data persistent	yes	yes	yes, by using IndexedDB or the cloud service Firebase Realtime Database	yes optionally
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes		yes using MemoryDB	yes
User concepts Access control	LDAP bind authentication	no	no	authentification to access the cache via certificates or http basic authentication
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More resources
	Atos Standard Common Repository	EJDB	Lovefield	Oracle Coherence
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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