DBMS > Atos Standard Common Repository vs. Sadas Engine vs. Valentina Server vs. YDB

System Properties Comparison Atos Standard Common Repository vs. Sadas Engine vs. Valentina Server vs. YDB

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Sadas Engine  Xexclude from comparison	Valentina Server  Xexclude from comparison	YDB  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	SADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environments	Object-relational database and reports server	A distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database model	Document store Key-value store	Relational DBMS	Relational DBMS	Document store Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.07 Rank #373   Overall #157   Relational DBMS	Score 0.21 Rank #325   Overall #144   Relational DBMS	Score 0.33 Rank #287   Overall #43   Document stores #132   Relational DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.sadasengine.com	www.valentina-db.net	github.com/­ydb-platform/­ydb ydb.tech
Technical documentation		www.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentation	valentina-db.com/­docs/­dokuwiki/­v5/­doku.php	ydb.tech/­en/­docs
Developer	Atos Convergence Creators	SADAS s.r.l.	Paradigma Software	Yandex
Initial release	2016	2006	1999	2019
Current release	1703	8.0	5.7.5
License Commercial or Open Source	commercial	commercial free trial version available	commercial	Open Source Apache 2.0; commercial license available
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++
Server operating systems	Linux	AIX Linux Windows	Linux OS X Windows	Linux
Data scheme	Schema and schema-less with LDAP views	yes	yes	Flexible Schema (defined schema, partial schema, schema free)
Typing predefined data types such as float or date	optional	yes	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	yes	yes	yes
SQL Support of SQL	no	yes	yes	SQL-like query language (YQL)
APIs and other access methods	LDAP	JDBC ODBC Proprietary protocol	ODBC	RESTful HTTP API (DynamoDB compatible)
Supported programming languages	All languages with LDAP bindings	.Net C C# C++ Groovy Java PHP Python	.Net C C# C++ Objective-C PHP Ruby Visual Basic Visual Basic.NET	Go Java JavaScript (Node.js) PHP Python
Server-side scripts Stored procedures	no	no	yes	no
Triggers	yes	no	yes
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	horizontal partitioning		Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	none		Active-passive shard replication
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	Immediate Consistency		Immediate Consistency
Foreign keys Referential integrity	no	yes	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations			ACID
Concurrency Support for concurrent manipulation of data	yes	yes		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.	yes	yes managed by 'Learn by Usage'	yes	no
User concepts Access control	LDAP bind authentication	Access rights for users, groups and roles according to SQL-standard	fine grained access rights according to SQL-standard	Access rights defined for Yandex Cloud users
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More resources
	Atos Standard Common Repository	Sadas Engine	Valentina Server	YDB
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