DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. RDF4J vs. SwayDB vs. VelocityDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. RDF4J vs. SwayDB vs. VelocityDB

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	RDF4J formerly known as Sesame  Xexclude from comparison	SwayDB  Xexclude from comparison	VelocityDB  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	RDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.	An embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storage	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Relational DBMS	RDF store	Key-value store	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 0.74 Rank #222   Overall #9   RDF stores	Score 0.04 Rank #387   Overall #61   Key-value stores	Score 0.11 Rank #354   Overall #37   Graph DBMS #16   Object oriented DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	rdf4j.org	swaydb.simer.au	velocitydb.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	rdf4j.org/­documentation		velocitydb.com/­UserGuide
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Since 2016 officially forked into an Eclipse project, former developer was Aduna Software.	Simer Plaha	VelocityDB Inc
Initial release	2016	2004	2018	2011
Current release				7.x
License Commercial or Open Source	commercial	Open Source Eclipse Distribution License (EDL), v1.0.	Open Source GNU Affero GPL V3.0	commercial
Cloud-based only Only available as a cloud service	yes	no	no	no
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Implementation language		Java	Scala	C#
Server operating systems	hosted	Linux OS X Unix Windows		Any that supports .NET
Data scheme	yes	yes RDF Schemas	schema-free	yes
Typing predefined data types such as float or date	yes	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	yes	no	yes
SQL Support of SQL	yes	no	no	no
APIs and other access methods	JDBC ODBC	Java API RIO RDF Input/Output Sail API SeRQL Sesame RDF Query Language Sesame REST HTTP Protocol SPARQL		.Net
Supported programming languages	C Java Perl Python R	Java PHP Python	Java Kotlin Scala	.Net
Server-side scripts Stored procedures	yes	yes	no	no
Triggers	yes	yes	no	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	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	Immediate Consistency
Foreign keys Referential integrity	yes		no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID Isolation support depends on the API used	Atomic execution of operations	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes in-memory storage is supported as well	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no		yes	yes
User concepts Access control	fine grained access rights according to SQL-standard	no	no	Based on Windows Authentication
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	RDF4J formerly known as Sesame	SwayDB	VelocityDB
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	GraphDB Goes Open Source 27 January 2020, iProgrammer Ontotext's GraphDB 8.10 Makes Knowledge Graph Experience Faster and Richer 13 June 2019, Markets Insider provided by Google News

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