DBMS > AgensGraph vs. Atos Standard Common Repository vs. EJDB vs. Hawkular Metrics

System Properties Comparison AgensGraph vs. Atos Standard Common Repository vs. EJDB vs. Hawkular Metrics

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Editorial information provided by DB-Engines
Name	AgensGraph  Xexclude from comparison	Atos Standard Common Repository  Xexclude from comparison	EJDB  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison
		This system has been discontinued and will be removed from the DB-Engines ranking.
Description	Multi-model database supporting relational and graph data models and built upon PostgreSQL	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)	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.
Primary database model	Graph DBMS Relational DBMS	Document store Key-value store	Document store	Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.23 Rank #315   Overall #26   Graph DBMS #140   Relational DBMS		Score 0.31 Rank #296   Overall #44   Document stores	Score 0.08 Rank #366   Overall #39   Time Series DBMS
Website	bitnine.net/­agensgraph	atos.net/en/convergence-creators/portfolio/standard-common-repository	github.com/­Softmotions/­ejdb	www.hawkular.org
Technical documentation	bitnine.net/­documentation		github.com/­Softmotions/­ejdb/­blob/­master/­README.md	www.hawkular.org/­hawkular-metrics/­docs/­user-guide
Developer	Bitnine Global Inc.	Atos Convergence Creators	Softmotions	Community supported by Red Hat
Initial release	2016	2016	2012	2014
Current release	2.1, December 2018	1703
License Commercial or Open Source	Open Source Apache License 2.0	commercial	Open Source GPLv2	Open Source Apache 2.0
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	C	Java	C	Java
Server operating systems	Linux OS X Windows	Linux	server-less	Linux OS X Windows
Data scheme	depending on used data model	Schema and schema-less with LDAP views	schema-free	schema-free
Typing predefined data types such as float or date	yes	optional	yes string, integer, double, bool, date, object_id	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.	no	yes		no
Secondary indexes	yes	yes	no	no
SQL Support of SQL	yes	no	no	no
APIs and other access methods	Cypher Query Language JDBC	LDAP	in-process shared library	HTTP REST
Supported programming languages	C Java JavaScript Python	All languages with LDAP bindings	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	Go Java Python Ruby
Server-side scripts Stored procedures	yes	no	no	no
Triggers	no	yes	no	yes via Hawkular Alerting
Partitioning methods Methods for storing different data on different nodes	no, but can be realized using table inheritance	Sharding cell division	none	Sharding based on Cassandra
Replication methods Methods for redundantly storing data on multiple nodes	Source-replica replication	yes	none	selectable replication factor based on Cassandra
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	Immediate Consistency or Eventual Consistency depending on configuration		Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra
Foreign keys Referential integrity	yes	no	no typically not needed, however similar functionality with collection joins possible	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	Atomic execution of specific operations	no	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes Read/Write Locking	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.	no	yes		no
User concepts Access control	fine grained access rights according to SQL-standard	LDAP bind authentication	no	no
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More resources
	AgensGraph	Atos Standard Common Repository	EJDB	Hawkular Metrics
Recent citations in the news	Graph DBMS Performance Comparison AgensGraph vs. Neo4j 29 June 2017, businesswire.com Bitnine Releases AgensGraph 2.1, the Multi-model Graph Database Optimized for the Legacy Environment 29 January 2019, businesswire.com AGE - The Open Source PostgreSQL Extension For Graph Database Functionality 27 June 2022, iProgrammer Bitnine: The Newly Revealed 'AI Teacher' Powered by Graph Database Delivers Hyper-Personalized Learning ... 25 March 2019, businesswire.com provided by Google News			Waiting for Red Hat OpenShift 4.0? Too late, 4.1 has already arrived… • DEVCLASS 5 June 2019, DevClass provided by Google News

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