DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. JSqlDb vs. NSDb vs. SiteWhere

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. JSqlDb vs. NSDb vs. SiteWhere

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	JSqlDb  Xexclude from comparison	NSDb  Xexclude from comparison	SiteWhere  Xexclude from comparison
		JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	JavaScript Query Language Database, stores JavaScript objects and primitives	Scalable, High-performance Time Series DBMS designed for Real-time Analytics on top of Kubernetes	M2M integration platform for persisting/querying time series data
Primary database model	Relational DBMS	Document store Object oriented DBMS	Time Series DBMS	Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS		Score 0.08 Rank #369   Overall #40   Time Series DBMS	Score 0.06 Rank #383   Overall #43   Time Series DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	jsqldb.org (offline)	nsdb.io	github.com/­sitewhere/­sitewhere
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview		nsdb.io/­Architecture	sitewhere1.sitewhere.io/­index.html
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Konrad von Backstrom		SiteWhere
Initial release	2016	2018	2017	2010
Current release		0.8, December 2018
License Commercial or Open Source	commercial	Open Source	Open Source Apache Version 2.0	Open Source Common Public Attribution License Version 1.0
Cloud-based only Only available as a cloud service	yes	no	no	no
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Implementation language			Java, Scala	Java
Server operating systems	hosted	Linux macOS Windows	Linux macOS	Linux OS X Windows
Data scheme	yes	schema-free		predefined scheme
Typing predefined data types such as float or date	yes	no	yes: int, bigint, decimal, string	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	no
Secondary indexes	yes	no	all fields are automatically indexed	no
SQL Support of SQL	yes	no	SQL-like query language	no
APIs and other access methods	JDBC ODBC		gRPC HTTP REST WebSocket	HTTP REST
Supported programming languages	C Java Perl Python R	JavaScript	Java Scala
Server-side scripts Stored procedures	yes	functions in JavaScript	no
Triggers	yes	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	Sharding	Sharding based on HBase
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none		selectable replication factor based on HBase
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		Eventual Consistency	Immediate Consistency
Foreign keys Referential integrity	yes	no	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
Durability Support for making data persistent	yes	yes using RocksDB	Using Apache Lucene	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no			no
User concepts Access control	fine grained access rights according to SQL-standard			Users with fine-grained authorization concept
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	JSqlDb	NSDb	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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