DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. ArcadeDB vs. Drizzle vs. VelocityDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. ArcadeDB vs. Drizzle vs. VelocityDB

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	ArcadeDB  Xexclude from comparison	Drizzle  Xexclude from comparison	VelocityDB  Xexclude from comparison
			Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Fast and scalable multi-model DBMS, originally forked from OrientDB but most of the code has been rewritten	MySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Relational DBMS	Document store Graph DBMS Key-value store Time Series DBMS in next version	Relational DBMS	Graph DBMS Object oriented DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.10 Rank #358   Overall #48   Document stores #38   Graph DBMS #52   Key-value stores #35   Time Series DBMS		Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	arcadedb.com		velocitydb.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	docs.arcadedb.com		velocitydb.com/­UserGuide
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Arcade Data	Drizzle project, originally started by Brian Aker	VelocityDB Inc
Initial release	2016	2021	2008	2011
Current release		September 2021	7.2.4, September 2012	7.x
License Commercial or Open Source	commercial	Open Source Apache Version 2.0	Open Source GNU GPL	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		Java	C++	C#
Server operating systems	hosted	All OS with a Java VM	FreeBSD Linux OS X	Any that supports .NET
Data scheme	yes	schema-free	yes	yes
Typing predefined data types such as float or date	yes	yes	yes	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	yes	yes	yes
SQL Support of SQL	yes	SQL-like query language, no joins	yes with proprietary extensions	no
APIs and other access methods	JDBC ODBC	JDBC MongoDB API OpenCypher PostgreSQL wire protocol Redis API RESTful HTTP/JSON API TinkerPop Gremlin	JDBC	.Net
Supported programming languages	C Java Perl Python R	Java	C C++ Java PHP	.Net
Server-side scripts Stored procedures	yes		no	no
Triggers	yes		no hooks for callbacks inside the server can be used.	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service		Sharding	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	Source-replica replication	Multi-source replication Source-replica replication
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 relationship in graphs	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	ACID	ACID
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
User concepts Access control	fine grained access rights according to SQL-standard		Pluggable authentication mechanisms e.g. LDAP, HTTP	Based on Windows Authentication
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	ArcadeDB	Drizzle	VelocityDB
DB-Engines blog posts			MySQL won the April ranking; did its forks follow? 1 April 2015, Paul Andlinger Has MySQL finally lost its mojo? 1 July 2013, Matthias Gelbmann show all
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

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