DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. RDF4J vs. Stardog vs. TerarkDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. RDF4J vs. Stardog vs. TerarkDB

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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	Stardog  Xexclude from comparison	TerarkDB  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.	Enterprise Knowledge Graph platform and graph DBMS with high availability, high performance reasoning, and virtualization	A key-value store forked from RocksDB with advanced compression algorithms. It can be used standalone or as a storage engine for MySQL and MongoDB
Primary database model	Relational DBMS	RDF store	Graph DBMS RDF store	Key-value store
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 2.07 Rank #122   Overall #11   Graph DBMS #6   RDF stores	Score 0.08 Rank #367   Overall #56   Key-value stores
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	rdf4j.org	www.stardog.com	github.com/­bytedance/­terarkdb
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	rdf4j.org/­documentation	docs.stardog.com	bytedance.larkoffice.com/­docs/­doccnZmYFqHBm06BbvYgjsHHcKc
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Since 2016 officially forked into an Eclipse project, former developer was Aduna Software.	Stardog-Union	ByteDance, originally Terark
Initial release	2016	2004	2010	2016
Current release			7.3.0, May 2020
License Commercial or Open Source	commercial	Open Source Eclipse Distribution License (EDL), v1.0.	commercial 60-day fully-featured trial license; 1-year fully-featured non-commercial use license for academics/students	commercial restricted open source version available
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	Java	C++
Server operating systems	hosted	Linux OS X Unix Windows	Linux macOS Windows
Data scheme	yes	yes RDF Schemas	schema-free and OWL/RDFS-schema support	schema-free
Typing predefined data types such as float or date	yes	yes	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 Import/export of XML data possible	no
Secondary indexes	yes	yes	yes supports real-time indexing in full-text and geospatial	no
SQL Support of SQL	yes	no	Yes, compatible with all major SQL variants through dedicated BI/SQL Server	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	GraphQL query language HTTP API Jena RDF API OWL RDF4J API Sesame REST HTTP Protocol SNARL SPARQL Spring Data Stardog Studio TinkerPop 3	C++ API Java API
Supported programming languages	C Java Perl Python R	Java PHP Python	.Net Clojure Groovy Java JavaScript Python Ruby	C++ Java
Server-side scripts Stored procedures	yes	yes	user defined functions and aggregates, HTTP Server extensions in Java	no
Triggers	yes	yes	yes via event handlers	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	none	none
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	Multi-source replication in HA-Cluster	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 in HA-Cluster
Foreign keys Referential integrity	yes		yes relationships in graphs	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID Isolation support depends on the API used	ACID	no
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	Access rights for users and roles	no
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	RDF4J formerly known as Sesame	Stardog	TerarkDB
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 Experts disclosed two critical flaws in Alibaba cloud database services 20 April 2023, Security Affairs 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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