DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Tkrzw vs. Yaacomo vs. YottaDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Tkrzw vs. Yaacomo vs. YottaDB

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison	Yaacomo  Xexclude from comparison	YottaDB  Xexclude from comparison
			Yaacomo seems to be discontinued and is removed from the DB-Engines ranking
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	A concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet	OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing	A fast and solid embedded Key-value store
Primary database model	Relational DBMS	Key-value store	Relational DBMS	Key-value store
Secondary database models				Relational DBMS using the Octo plugin
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 #372   Overall #57   Key-value stores		Score 0.28 Rank #306   Overall #44   Key-value stores
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	dbmx.net/­tkrzw	yaacomo.com	yottadb.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview			yottadb.com/­resources/­documentation
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Mikio Hirabayashi	Q2WEB GmbH	YottaDB, LLC
Initial release	2016	2020	2009	2001
Current release		0.9.3, August 2020
License Commercial or Open Source	commercial	Open Source Apache Version 2.0	commercial	Open Source AGPL 3.0
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		C++		C
Server operating systems	hosted	Linux macOS	Android Linux Windows	Docker Linux
Data scheme	yes	schema-free	yes	schema-free
Typing predefined data types such as float or date	yes	no	yes	no
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		yes	no
SQL Support of SQL	yes	no	yes	by using the Octo plugin
APIs and other access methods	JDBC ODBC		JDBC ODBC	PostgreSQL wire protocol using the Octo plugin Proprietary protocol
Supported programming languages	C Java Perl Python R	C++ Java Python Ruby		C Go JavaScript (Node.js) Lua M Perl Python Rust
Server-side scripts Stored procedures	yes	no
Triggers	yes	no	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	Source-replica replication	yes
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	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID		ACID	optimistic locking
Concurrency Support for concurrent manipulation of data	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 using specific database classes	yes	yes
User concepts Access control	fine grained access rights according to SQL-standard	no	fine grained access rights according to SQL-standard	Users and groups based on OS-security mechanisms
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet	Yaacomo	YottaDB
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 How Data Analytics Capabilities of Alibaba Group Evolve Its Ecosystem to the Cloud 20 February 2021, DataDrivenInvestor Alibaba Cloud ignites AI innovation in Singapore with recent hackathon | KrASIA 27 March 2024, KrASIA provided by Google News

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