DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. DataFS vs. EventStoreDB vs. SiteWhere

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. DataFS vs. EventStoreDB vs. SiteWhere

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	DataFS  Xexclude from comparison	EventStoreDB  Xexclude from comparison	SiteWhere  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	All data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.	Industrial-strength, open-source database solution built from the ground up for event sourcing.	M2M integration platform for persisting/querying time series data
Primary database model	Relational DBMS	Object oriented DBMS	Event Store	Time Series DBMS
Secondary database models		Graph DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.09 Rank #360   Overall #18   Object oriented DBMS	Score 1.19 Rank #173   Overall #1   Event Stores	Score 0.06 Rank #383   Overall #43   Time Series DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	newdatabase.com	www.eventstore.com	github.com/­sitewhere/­sitewhere
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	dev.mobiland.com/­Overview.xsp	developers.eventstore.com	sitewhere1.sitewhere.io/­index.html
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Mobiland AG	Event Store Limited	SiteWhere
Initial release	2016	2018	2012	2010
Current release		1.1.263, October 2022	21.2, February 2021
License Commercial or Open Source	commercial	commercial	Open Source	Open Source Common Public Attribution License Version 1.0
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
Server operating systems	hosted	Windows	Linux Windows	Linux OS X Windows
Data scheme	yes	Classes, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)		predefined scheme
Typing predefined data types such as float or date	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	no		no
SQL Support of SQL	yes	no		no
APIs and other access methods	JDBC ODBC	.NET Client API Proprietary client DLL WinRT client		HTTP REST
Supported programming languages	C Java Perl Python R	.Net C C# C++ VB.Net
Server-side scripts Stored procedures	yes
Triggers	yes	no, except callback-events from server when changes happened
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	Proprietary Sharding system		Sharding based on HBase
Replication methods Methods for redundantly storing data on multiple nodes	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	Immediate Consistency		Immediate Consistency
Foreign keys Referential integrity	yes	yes		no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID		no
Concurrency Support for concurrent manipulation of data	yes	yes		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.	no	no		no
User concepts Access control	fine grained access rights according to SQL-standard	Windows-Profile		Users with fine-grained authorization concept
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	DataFS	EventStoreDB	SiteWhere
Recent citations in the news	Alibaba Cloud upgrades AnalyticDB with vector database engine 25 July 2023, CloudTech News Two Critical Flaws Found in Alibaba Cloud's PostgreSQL Databases 20 April 2023, The Hacker News Accidental ‘write’ Permissions In Alibaba PostgreSQL Let Attackers Access Sensitive Data 22 April 2023, GBHackers Two critical vulnerabilities spotted in Alibaba Cloud's PostgreSQL databases 21 April 2023, TEISS Alibaba Cloud ignites AI innovation in Singapore with recent hackathon | KrASIA 27 March 2024, KrASIA 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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