DBMS > Alibaba Cloud Table Store vs. Atos Standard Common Repository vs. Datomic vs. OpenQM

System Properties Comparison Alibaba Cloud Table Store vs. Atos Standard Common Repository vs. Datomic vs. OpenQM

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Editorial information provided by DB-Engines
Name	Alibaba Cloud Table Store  Xexclude from comparison	Atos Standard Common Repository  Xexclude from comparison	Datomic  Xexclude from comparison	OpenQM also called QM  Xexclude from comparison
		This system has been discontinued and will be removed from the DB-Engines ranking.
Description	A fully managed Wide Column Store for large quantities of semi-structured data with real-time access	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	Datomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durability	QpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database model	Wide column store	Document store Key-value store	Relational DBMS	Multivalue DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.31 Rank #297   Overall #11   Wide column stores		Score 1.66 Rank #144   Overall #66   Relational DBMS	Score 0.34 Rank #284   Overall #10   Multivalue DBMS
Website	www.alibabacloud.com/­product/­table-store	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.datomic.com	www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm
Technical documentation	www.alibabacloud.com/­help/­en/­tablestore		docs.datomic.com
Developer	Alibaba	Atos Convergence Creators	Cognitect	Rocket Software, originally Martin Phillips
Initial release	2016	2016	2012	1993
Current release		1703	1.0.6735, June 2023	3.4-12
License Commercial or Open Source	commercial	commercial	commercial limited edition free	Open Source GPLv2, extended commercial license available
Cloud-based only Only available as a cloud service	yes	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, Clojure
Server operating systems	hosted	Linux	All OS with a Java VM	AIX FreeBSD Linux macOS Raspberry Pi Solaris Windows
Data scheme	schema-free	Schema and schema-less with LDAP views	yes	yes with some exceptions
Typing predefined data types such as float or date	yes	optional	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	yes
Secondary indexes	no	yes	yes	yes
SQL Support of SQL	no	no	no	no
APIs and other access methods	HTTP API	LDAP	RESTful HTTP API
Supported programming languages	Java Python	All languages with LDAP bindings	Clojure Java	.Net Basic C Java Objective C PHP Python
Server-side scripts Stored procedures	no	no	yes Transaction Functions	yes
Triggers	no	yes	By using transaction functions	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	Sharding cell division	none But extensive use of caching in the application peers	yes
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	yes	none But extensive use of caching in the application peers	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	Immediate Consistency or Eventual Consistency depending on configuration	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic single-row operations	Atomic execution of specific operations	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes using external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	yes	yes recommended only for testing and development
User concepts Access control	Access rights based on subaccounts and tokens	LDAP bind authentication	no	Access rights can be defined down to the item level
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More resources
	Alibaba Cloud Table Store	Atos Standard Common Repository	Datomic	OpenQM also called QM
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