DBMS > Alibaba Cloud TSDB vs. Atos Standard Common Repository vs. IBM Cloudant vs. Postgres-XL

System Properties Comparison Alibaba Cloud TSDB vs. Atos Standard Common Repository vs. IBM Cloudant vs. Postgres-XL

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Editorial information provided by DB-Engines
Name	Alibaba Cloud TSDB  Xexclude from comparison	Atos Standard Common Repository  Xexclude from comparison	IBM Cloudant  Xexclude from comparison	Postgres-XL  Xexclude from comparison
		This system has been discontinued and will be removed from the DB-Engines ranking.
Description	A stable, reliable, and cost-effective online high-performance time series database service	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	Database as a Service offering based on Apache CouchDB	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features
Primary database model	Time Series DBMS	Document store Key-value store	Document store	Relational DBMS
Secondary database models				Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.29 Rank #301   Overall #26   Time Series DBMS		Score 2.75 Rank #104   Overall #19   Document stores	Score 0.53 Rank #254   Overall #117   Relational DBMS
Website	www.alibabacloud.com/­product/­hitsdb	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.ibm.com/­products/­cloudant	www.postgres-xl.org
Technical documentation	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb		cloud.ibm.com/­docs/­Cloudant	www.postgres-xl.org/­documentation
Developer	Alibaba	Atos Convergence Creators	IBM, Apache Software Foundation IBM acquired Cloudant in February 2014
Initial release		2016	2010	2014 since 2012, originally named StormDB
Current release		1703		10 R1, October 2018
License Commercial or Open Source	commercial	commercial	commercial	Open Source Mozilla public license
Cloud-based only Only available as a cloud service	yes	no	yes	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		Java	Erlang	C
Server operating systems	hosted	Linux	hosted	Linux macOS
Data scheme	schema-free	Schema and schema-less with LDAP views	schema-free	yes
Typing predefined data types such as float or date	Numeric data and Strings	optional	no	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 XML type, but no XML query functionality
Secondary indexes	no	yes	yes	yes
SQL Support of SQL	no	no	no	yes distributed, parallel query execution
APIs and other access methods	HTTP REST	LDAP	RESTful HTTP/JSON API	ADO.NET JDBC native C library ODBC streaming API for large objects
Supported programming languages	Java	All languages with LDAP bindings	C# Java JavaScript Objective-C PHP Ruby	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl
Server-side scripts Stored procedures	no	no	View functions (Map-Reduce) in JavaScript	user defined functions
Triggers	no	yes	yes	yes
Partitioning methods Methods for storing different data on different nodes		Sharding cell division	Sharding	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes		yes	Multi-source replication Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no		yes	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency or Eventual Consistency depending on configuration	Eventual Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	Atomic execution of specific operations	no atomic operations within a document possible	ACID MVCC
Concurrency Support for concurrent manipulation of data	yes	yes	yes Optimistic 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	no
User concepts Access control	Access managed on TSDB instance level	LDAP bind authentication	Access rights for users can be defined per database	fine grained access rights according to SQL-standard
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More resources
	Alibaba Cloud TSDB	Atos Standard Common Repository	IBM Cloudant	Postgres-XL
Recent citations in the news			Cloudant Best (and Worst) Practices — Part 1 18 March 2019, ibm.com Intro to Enterprise Cloud Storage: How to Set Up a Cloudant Database 1 December 2014, Linux.com IBM Expands Cloud Database Services with Kubernetes 26 September 2019, EnterpriseAI IBM Code Engine and IBM Cloudant: Serverless Data and Infrastructure 16 August 2021, ibm.com IBM to Purchase Cloudant Database as a service (DBaaS) Provider 22 March 2014, App Developer Magazine provided by Google News

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