DBMS > Alibaba Cloud TSDB vs. Microsoft Azure AI Search vs. Postgres-XL vs. RDF4J

System Properties Comparison Alibaba Cloud TSDB vs. Microsoft Azure AI Search vs. Postgres-XL vs. RDF4J

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Editorial information provided by DB-Engines
Name	Alibaba Cloud TSDB  Xexclude from comparison	Microsoft Azure AI Search  Xexclude from comparison	Postgres-XL  Xexclude from comparison	RDF4J formerly known as Sesame  Xexclude from comparison
Description	A stable, reliable, and cost-effective online high-performance time series database service	Search-as-a-service for web and mobile app development	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	RDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.
Primary database model	Time Series DBMS	Search engine	Relational DBMS	RDF store
Secondary database models		Vector DBMS	Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.29 Rank #301   Overall #26   Time Series DBMS	Score 5.52 Rank #59   Overall #6   Search engines	Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.74 Rank #222   Overall #9   RDF stores
Website	www.alibabacloud.com/­product/­hitsdb	azure.microsoft.com/­en-us/­services/­search	www.postgres-xl.org	rdf4j.org
Technical documentation	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb	learn.microsoft.com/­en-us/­azure/­search	www.postgres-xl.org/­documentation	rdf4j.org/­documentation
Developer	Alibaba	Microsoft		Since 2016 officially forked into an Eclipse project, former developer was Aduna Software.
Initial release		2015	2014 since 2012, originally named StormDB	2004
Current release		V1	10 R1, October 2018
License Commercial or Open Source	commercial	commercial	Open Source Mozilla public license	Open Source Eclipse Distribution License (EDL), v1.0.
Cloud-based only Only available as a cloud service	yes	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language			C	Java
Server operating systems	hosted	hosted	Linux macOS	Linux OS X Unix Windows
Data scheme	schema-free	yes	yes	yes RDF Schemas
Typing predefined data types such as float or date	Numeric data and Strings	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.	no	no	yes XML type, but no XML query functionality
Secondary indexes	no	yes	yes	yes
SQL Support of SQL	no	no	yes distributed, parallel query execution	no
APIs and other access methods	HTTP REST	RESTful HTTP API	ADO.NET JDBC native C library ODBC streaming API for large objects	Java API RIO RDF Input/Output Sail API SeRQL Sesame RDF Query Language Sesame REST HTTP Protocol SPARQL
Supported programming languages	Java	C# Java JavaScript Python	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	Java PHP Python
Server-side scripts Stored procedures	no	no	user defined functions	yes
Triggers	no	no	yes	yes
Partitioning methods Methods for storing different data on different nodes		Sharding Implicit feature of the cloud service	horizontal partitioning	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	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no	ACID MVCC	ACID Isolation support depends on the API used
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes	yes in-memory storage is supported as well
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	Access managed on TSDB instance level	yes using Azure authentication	fine grained access rights according to SQL-standard	no
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More resources
	Alibaba Cloud TSDB	Microsoft Azure AI Search	Postgres-XL	RDF4J formerly known as Sesame
Recent citations in the news		Announcing updates to Azure AI Search to help organizations build and scale generative AI applications 4 April 2024, Microsoft Public Preview of Azure OpenAI and AI Search in-app connectors for Logic Apps (Standard) | Azure updates 2 April 2024, Microsoft Microsoft’s Azure AI Search updated with increased storage, vector index size 5 April 2024, InfoWorld From code to production: New ways Azure helps you build transformational AI experiences 21 May 2024, Microsoft Celebrating customers' journeys to AI innovation at Microsoft Build 2024 30 May 2024, Microsoft 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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