DBMS > Atos Standard Common Repository vs. IBM Cloudant vs. Postgres-XL vs. ReductStore

System Properties Comparison Atos Standard Common Repository vs. IBM Cloudant vs. Postgres-XL vs. ReductStore

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	IBM Cloudant  Xexclude from comparison	Postgres-XL  Xexclude from comparison	ReductStore  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	Database as a Service offering based on Apache CouchDB	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	Designed to manage unstructured time-series data efficiently, providing unique features such as storing time-stamped blobs with labels, customizable data retention policies, and a straightforward FIFO quota system.
Primary database model	Document store Key-value store	Document store	Relational DBMS	Time Series DBMS
Secondary database models			Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 2.75 Rank #104   Overall #19   Document stores	Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.05 Rank #384   Overall #44   Time Series DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.ibm.com/­products/­cloudant	www.postgres-xl.org	github.com/­reductstore www.reduct.store
Technical documentation		cloud.ibm.com/­docs/­Cloudant	www.postgres-xl.org/­documentation	www.reduct.store/­docs
Developer	Atos Convergence Creators	IBM, Apache Software Foundation IBM acquired Cloudant in February 2014		ReductStore LLC
Initial release	2016	2010	2014 since 2012, originally named StormDB	2023
Current release	1703		10 R1, October 2018	1.9, March 2024
License Commercial or Open Source	commercial	commercial	Open Source Mozilla public license	Open Source Business Source License 1.1
Cloud-based only Only available as a cloud service	no	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java	Erlang	C	C++, Rust
Server operating systems	Linux	hosted	Linux macOS	Docker Linux macOS Windows
Data scheme	Schema and schema-less with LDAP views	schema-free	yes
Typing predefined data types such as float or date	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.	yes	no	yes XML type, but no XML query functionality
Secondary indexes	yes	yes	yes
SQL Support of SQL	no	no	yes distributed, parallel query execution
APIs and other access methods	LDAP	RESTful HTTP/JSON API	ADO.NET JDBC native C library ODBC streaming API for large objects	HTTP API
Supported programming languages	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	C++ JavaScript (Node.js) Python Rust
Server-side scripts Stored procedures	no	View functions (Map-Reduce) in JavaScript	user defined functions
Triggers	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		yes	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	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	no atomic operations within a document possible	ACID MVCC
Concurrency Support for concurrent manipulation of data	yes	yes Optimistic locking	yes
Durability Support for making data persistent	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes	no	no
User concepts Access control	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
	Atos Standard Common Repository	IBM Cloudant	Postgres-XL	ReductStore
Recent citations in the news		Cloudant Best (and Worst) Practices — Part 1 18 March 2019, IBM 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 IBM to Purchase Cloudant Database as a service (DBaaS) Provider 22 March 2014, App Developer Magazine provided by Google News

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