DBMS > Atos Standard Common Repository vs. EJDB vs. Microsoft Azure AI Search vs. SiteWhere

System Properties Comparison Atos Standard Common Repository vs. EJDB vs. Microsoft Azure AI Search vs. SiteWhere

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	EJDB  Xexclude from comparison	Microsoft Azure AI Search  Xexclude from comparison	SiteWhere  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 document-store database library with JSON representation of queries (in MongoDB style)	Search-as-a-service for web and mobile app development	M2M integration platform for persisting/querying time series data
Primary database model	Document store Key-value store	Document store	Search engine	Time Series DBMS
Secondary database models			Vector DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.31 Rank #296   Overall #44   Document stores	Score 5.52 Rank #59   Overall #6   Search engines	Score 0.06 Rank #383   Overall #43   Time Series DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	github.com/­Softmotions/­ejdb	azure.microsoft.com/­en-us/­services/­search	github.com/­sitewhere/­sitewhere
Technical documentation		github.com/­Softmotions/­ejdb/­blob/­master/­README.md	learn.microsoft.com/­en-us/­azure/­search	sitewhere1.sitewhere.io/­index.html
Developer	Atos Convergence Creators	Softmotions	Microsoft	SiteWhere
Initial release	2016	2012	2015	2010
Current release	1703		V1
License Commercial or Open Source	commercial	Open Source GPLv2	commercial	Open Source Common Public Attribution License Version 1.0
Cloud-based only Only available as a cloud service	no	no	yes	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	server-less	hosted	Linux OS X Windows
Data scheme	Schema and schema-less with LDAP views	schema-free	yes	predefined scheme
Typing predefined data types such as float or date	optional	yes string, integer, double, bool, date, object_id	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	yes	no
SQL Support of SQL	no	no	no	no
APIs and other access methods	LDAP	in-process shared library	RESTful HTTP API	HTTP REST
Supported programming languages	All languages with LDAP bindings	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	C# Java JavaScript Python
Server-side scripts Stored procedures	no	no	no
Triggers	yes	no	no
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	none	Sharding Implicit feature of the cloud service	Sharding based on HBase
Replication methods Methods for redundantly storing data on multiple nodes	yes	none	yes Implicit feature of the cloud service	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
Foreign keys Referential integrity	no	no typically not needed, however similar functionality with collection joins possible	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	no	no	no
Concurrency Support for concurrent manipulation of data	yes	yes Read/Write Locking	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		no	no
User concepts Access control	LDAP bind authentication	no	yes using Azure authentication	Users with fine-grained authorization concept
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More resources
	Atos Standard Common Repository	EJDB	Microsoft Azure AI Search	SiteWhere
Recent citations in the news			Announcing updates to Azure AI Search to help organizations build and scale generative AI applications 4 April 2024, Microsoft Microsoft and ServiceNow at Knowledge 2024: Introducing generative AI innovation 13 June 2024, Microsoft Azure OpenAI Service: Transforming legal practices with generative AI solutions 12 June 2024, Microsoft Public Preview of Azure OpenAI and AI Search in-app connectors for Logic Apps (Standard) | Azure updates 2 April 2024, Microsoft Raise the bar on AI-powered app development with Azure Database for PostgreSQL 5 June 2024, Microsoft provided by Google News	SiteWhere: An open platform for connected devices 11 July 2017, Open Source For You 11 Best Open source IoT Platforms To Develop Smart Projects 9 March 2023, H2S Media provided by Google News

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