DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Sadas Engine vs. SiteWhere vs. STSdb

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Sadas Engine vs. SiteWhere vs. STSdb

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Sadas Engine  Xexclude from comparison	SiteWhere  Xexclude from comparison	STSdb  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	SADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environments	M2M integration platform for persisting/querying time series data	Key-Value Store with special method for indexing optimized for high performance using a special indexing method
Primary database model	Relational DBMS	Relational DBMS	Time Series DBMS	Key-value store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.07 Rank #373   Overall #157   Relational DBMS	Score 0.06 Rank #383   Overall #43   Time Series DBMS	Score 0.10 Rank #357   Overall #51   Key-value stores
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	www.sadasengine.com	github.com/­sitewhere/­sitewhere	github.com/­STSSoft/­STSdb4
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	www.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentation	sitewhere1.sitewhere.io/­index.html
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	SADAS s.r.l.	SiteWhere	STS Soft SC
Initial release	2016	2006	2010	2011
Current release		8.0		4.0.8, September 2015
License Commercial or Open Source	commercial	commercial free trial version available	Open Source Common Public Attribution License Version 1.0	Open Source GPLv2, commercial license available
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		C++	Java	C#
Server operating systems	hosted	AIX Linux Windows	Linux OS X Windows	Windows
Data scheme	yes	yes	predefined scheme	yes
Typing predefined data types such as float or date	yes	yes	yes	yes primitive types and user defined types (classes)
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	no	no
SQL Support of SQL	yes	yes	no	no
APIs and other access methods	JDBC ODBC	JDBC ODBC Proprietary protocol	HTTP REST	.NET Client API
Supported programming languages	C Java Perl Python R	.Net C C# C++ Groovy Java PHP Python		C# Java
Server-side scripts Stored procedures	yes	no		no
Triggers	yes	no		no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	horizontal partitioning	Sharding based on HBase	none
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	selectable replication factor based on HBase	none
MapReduce Offers an API for user-defined Map/Reduce methods	no	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	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID		no	no
Concurrency Support for concurrent manipulation of data	yes	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.	no	yes managed by 'Learn by Usage'	no
User concepts Access control	fine grained access rights according to SQL-standard	Access rights for users, groups and roles according to SQL-standard	Users with fine-grained authorization concept	no
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Sadas Engine	SiteWhere	STSdb
Recent citations in the 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 to spur AI innovation with upcoming Singapore hackathon in March | KrASIA 21 February 2024, KrASIA How Data Analytics Capabilities of Alibaba Group Evolve Its Ecosystem to the Cloud 20 February 2021, DataDrivenInvestor provided by Google News		SiteWhere: An open platform for connected devices 11 July 2017, Open Source For You Ten Popular IoT Platforms You Should be Aware of 27 March 2023, 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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