DBMS > Alibaba Cloud TSDB vs. Atos Standard Common Repository vs. Databend vs. EJDB

System Properties Comparison Alibaba Cloud TSDB vs. Atos Standard Common Repository vs. Databend vs. EJDB

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Editorial information provided by DB-Engines
Name	Alibaba Cloud TSDB  Xexclude from comparison	Atos Standard Common Repository  Xexclude from comparison	Databend  Xexclude from comparison	EJDB  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	An open-source, elastic, and workload-aware cloud data warehouse designed to meet businesses' massive-scale analytics needs at low cost and with low complexity	Embeddable document-store database library with JSON representation of queries (in MongoDB style)
Primary database model	Time Series DBMS	Document store Key-value store	Relational DBMS	Document store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.29 Rank #301   Overall #26   Time Series DBMS		Score 0.34 Rank #283   Overall #130   Relational DBMS	Score 0.31 Rank #296   Overall #44   Document stores
Website	www.alibabacloud.com/­product/­hitsdb	atos.net/en/convergence-creators/portfolio/standard-common-repository	github.com/­datafuselabs/­databend www.databend.com	github.com/­Softmotions/­ejdb
Technical documentation	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb		docs.databend.com	github.com/­Softmotions/­ejdb/­blob/­master/­README.md
Developer	Alibaba	Atos Convergence Creators	Databend Labs	Softmotions
Initial release		2016	2021	2012
Current release		1703	1.0.59, April 2023
License Commercial or Open Source	commercial	commercial	Open Source Apache Version 2.0	Open Source GPLv2
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	Rust	C
Server operating systems	hosted	Linux	hosted Linux macOS	server-less
Data scheme	schema-free	Schema and schema-less with LDAP views	yes	schema-free
Typing predefined data types such as float or date	Numeric data and Strings	optional	yes	yes string, integer, double, bool, date, object_id
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
Secondary indexes	no	yes	no	no
SQL Support of SQL	no	no	yes	no
APIs and other access methods	HTTP REST	LDAP	CLI Client JDBC RESTful HTTP API	in-process shared library
Supported programming languages	Java	All languages with LDAP bindings	Go Java JavaScript (Node.js) Python Rust	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby
Server-side scripts Stored procedures	no	no	no	no
Triggers	no	yes	no	no
Partitioning methods Methods for storing different data on different nodes		Sharding cell division	none	none
Replication methods Methods for redundantly storing data on multiple nodes		yes	none	none
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
Foreign keys Referential integrity	no	no	no	no typically not needed, however similar functionality with collection joins possible
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	Atomic execution of specific operations	yes	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes Read/Write Locking
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
User concepts Access control	Access managed on TSDB instance level	LDAP bind authentication	Users with fine-grained authorization concept, user roles	no
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More resources
	Alibaba Cloud TSDB	Atos Standard Common Repository	Databend	EJDB
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