DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. Cachelot.io vs. Oracle Rdb

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. Cachelot.io vs. Oracle Rdb

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Alibaba Cloud TSDB  Xexclude from comparison	Cachelot.io  Xexclude from comparison	Oracle Rdb  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	A stable, reliable, and cost-effective online high-performance time series database service	In-memory caching system
Primary database model	Relational DBMS	Time Series DBMS	Key-value store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.29 Rank #301   Overall #26   Time Series DBMS	Score 0.04 Rank #388   Overall #62   Key-value stores	Score 1.14 Rank #178   Overall #80   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	www.alibabacloud.com/­product/­hitsdb	cachelot.io	www.oracle.com/­database/­technologies/­related/­rdb.html
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb		www.oracle.com/­database/­technologies/­related/­rdb-doc.html
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Alibaba		Oracle, originally developed by Digital Equipment Corporation (DEC)
Initial release	2016		2015	1984
Current release				7.4.1.1, 2021
License Commercial or Open Source	commercial	commercial	Open Source Simplified BSD License	commercial
Cloud-based only Only available as a cloud service	yes	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language			C++
Server operating systems	hosted	hosted	FreeBSD Linux OS X	HP Open VMS
Data scheme	yes	schema-free	schema-free	Flexible Schema (defined schema, partial schema, schema free)
Typing predefined data types such as float or date	yes	Numeric data and Strings	no	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	no	yes
SQL Support of SQL	yes	no	no	yes
APIs and other access methods	JDBC ODBC	HTTP REST	Memcached protocol
Supported programming languages	C Java Perl Python R	Java	.Net C C++ ColdFusion Erlang Java Lisp Lua OCaml OCaml Perl PHP Python Ruby
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		none
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service		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	none	Immediate Consistency
Foreign keys Referential integrity	yes	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	no	yes, on a single node
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	no	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	no	no	no
User concepts Access control	fine grained access rights according to SQL-standard	Access managed on TSDB instance level	no
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Alibaba Cloud TSDB	Cachelot.io	Oracle Rdb
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			Oracle Adds New AI-Enabling Features To MySQL HeatWave 23 March 2023, Forbes Should we all consolidate databases for the storage benefits? Reg vultures deploy DevOps, zoos, haircuts 18 September 2020, The Register 2013 Data Science Salary Survey 4 May 2013, oreilly.com provided by Google News

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