DBMS > Atos Standard Common Repository vs. LevelDB vs. SiteWhere vs. Transwarp KunDB

System Properties Comparison Atos Standard Common Repository vs. LevelDB vs. SiteWhere vs. Transwarp KunDB

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	LevelDB  Xexclude from comparison	SiteWhere  Xexclude from comparison	Transwarp KunDB  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	Embeddable fast key-value storage library that provides an ordered mapping from string keys to string values	M2M integration platform for persisting/querying time series data	OLTP DBMS based on a distributed architecture and highly compatible with MySQL and Oracle
Primary database model	Document store Key-value store	Key-value store	Time Series DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 2.25 Rank #115   Overall #19   Key-value stores	Score 0.06 Rank #383   Overall #43   Time Series DBMS	Score 0.14 Rank #341   Overall #149   Relational DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	github.com/­google/­leveldb	github.com/­sitewhere/­sitewhere	www.transwarp.cn/­en/­product/­kundb
Technical documentation		github.com/­google/­leveldb/­blob/­main/­doc/­index.md	sitewhere1.sitewhere.io/­index.html
Developer	Atos Convergence Creators	Google	SiteWhere	Transwarp
Initial release	2016	2011	2010
Current release	1703	1.23, February 2021
License Commercial or Open Source	commercial	Open Source BSD	Open Source Common Public Attribution License Version 1.0	commercial
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++	Java
Server operating systems	Linux	Illumos Linux OS X Windows	Linux OS X Windows
Data scheme	Schema and schema-less with LDAP views	schema-free	predefined scheme	yes
Typing predefined data types such as float or date	optional	no	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	no	no	yes
SQL Support of SQL	no	no	no	yes
APIs and other access methods	LDAP		HTTP REST
Supported programming languages	All languages with LDAP bindings	C++ Go Java 3rd party binding JavaScript (Node.js) 3rd party binding Python 3rd party binding
Server-side scripts Stored procedures	no	no		yes
Triggers	yes	no		yes
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	none	Sharding based on HBase	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	yes	none	selectable replication factor based on HBase
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	Immediate Consistency
Foreign keys Referential integrity	no	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	no	no	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes with automatic compression on writes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes		no
User concepts Access control	LDAP bind authentication	no	Users with fine-grained authorization concept	yes
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More resources
	Atos Standard Common Repository	LevelDB	SiteWhere	Transwarp KunDB
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