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

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

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Cachelot.io  Xexclude from comparison	chDB  Xexclude from comparison	Oracle Rdb  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	In-memory caching system	An embedded SQL OLAP Engine powered by ClickHouse
Primary database model	Relational DBMS	Key-value store	Relational DBMS	Relational DBMS
Secondary database models			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 0.04 Rank #388   Overall #62   Key-value stores	Score 0.07 Rank #376   Overall #158   Relational DBMS	Score 1.14 Rank #178   Overall #80   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	cachelot.io	github.com/­chdb-io/­chdb	www.oracle.com/­database/­technologies/­related/­rdb.html
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview		doc.chdb.io	www.oracle.com/­database/­technologies/­related/­rdb-doc.html
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group			Oracle, originally developed by Digital Equipment Corporation (DEC)
Initial release	2016	2015	2023	1984
Current release				7.4.1.1, 2021
License Commercial or Open Source	commercial	Open Source Simplified BSD License	Open Source Apache Version 2.0	commercial
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++
Server operating systems	hosted	FreeBSD Linux OS X	server-less	HP Open VMS
Data scheme	yes	schema-free		Flexible Schema (defined schema, partial schema, schema free)
Typing predefined data types such as float or date	yes	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
Secondary indexes	yes	no		yes
SQL Support of SQL	yes	no	Close to ANSI SQL (SQL/JSON + extensions)	yes
APIs and other access methods	JDBC ODBC	Memcached protocol
Supported programming languages	C Java Perl Python R	.Net C C++ ColdFusion Erlang Java Lisp Lua OCaml OCaml Perl PHP Python Ruby	Bun C C++ Go JavaScript (Node.js) Python Rust
Server-side scripts Stored procedures	yes	no
Triggers	yes	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
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	none		Immediate Consistency
Foreign keys Referential integrity	yes	no		yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no		yes, on a single node
Concurrency Support for concurrent manipulation of data	yes	yes		yes
Durability Support for making data persistent	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
User concepts Access control	fine grained access rights according to SQL-standard	no
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Cachelot.io	chDB	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 – O'Reilly 4 May 2013, O'Reilly Media provided by Google News

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