DBMS > Microsoft Azure AI Search vs. Microsoft Azure Synapse Analytics vs. OpenQM vs. VelocityDB

System Properties Comparison Microsoft Azure AI Search vs. Microsoft Azure Synapse Analytics vs. OpenQM vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Microsoft Azure AI Search  Xexclude from comparison	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse  Xexclude from comparison	OpenQM also called QM  Xexclude from comparison	VelocityDB  Xexclude from comparison
Description	Search-as-a-service for web and mobile app development	Elastic, large scale data warehouse service leveraging the broad eco-system of SQL Server	QpenQM is a high-performance, self-tuning, multi-value DBMS	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Search engine	Relational DBMS	Multivalue DBMS	Graph DBMS Object oriented DBMS
Secondary database models	Vector DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 5.52 Rank #59   Overall #6   Search engines	Score 19.93 Rank #31   Overall #19   Relational DBMS	Score 0.34 Rank #284   Overall #10   Multivalue DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	azure.microsoft.com/­en-us/­services/­search	azure.microsoft.com/­services/­synapse-analytics	www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm	velocitydb.com
Technical documentation	learn.microsoft.com/­en-us/­azure/­search	docs.microsoft.com/­azure/­synapse-analytics		velocitydb.com/­UserGuide
Developer	Microsoft	Microsoft	Rocket Software, originally Martin Phillips	VelocityDB Inc
Initial release	2015	2016	1993	2011
Current release	V1		3.4-12	7.x
License Commercial or Open Source	commercial	commercial	Open Source GPLv2, extended commercial license available	commercial
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++		C#
Server operating systems	hosted	hosted	AIX FreeBSD Linux macOS Raspberry Pi Solaris Windows	Any that supports .NET
Data scheme	yes	yes	yes with some exceptions	yes
Typing predefined data types such as float or date	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	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	no	yes	no	no
APIs and other access methods	RESTful HTTP API	ADO.NET JDBC ODBC		.Net
Supported programming languages	C# Java JavaScript Python	C# Java PHP	.Net Basic C Java Objective C PHP Python	.Net
Server-side scripts Stored procedures	no	Transact SQL	yes	no
Triggers	no	no	yes	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	Sharding, horizontal partitioning	yes	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	yes	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	Immediate Consistency
Foreign keys Referential integrity	no	no docs.microsoft.com/­en-us/­azure/­synapse-analytics/­sql-data-warehouse/­sql-data-warehouse-table-constraints	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	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	yes using Azure authentication	yes	Access rights can be defined down to the item level	Based on Windows Authentication
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More resources
	Microsoft Azure AI Search	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse	OpenQM also called QM	VelocityDB
Recent citations in the news	Announcing updates to Azure AI Search to help organizations build and scale generative AI applications 4 April 2024, Microsoft Microsoft and ServiceNow at Knowledge 2024: Introducing generative AI innovation 13 June 2024, Microsoft Azure OpenAI Service: Transforming legal practices with generative AI solutions 12 June 2024, Microsoft Public Preview of Azure OpenAI and AI Search in-app connectors for Logic Apps (Standard) | Azure updates 2 April 2024, Microsoft Raise the bar on AI-powered app development with Azure Database for PostgreSQL 5 June 2024, Microsoft provided by Google News	General Available: Azure Synapse Runtime for Apache Spark 3.4 is now GA | Azure updates 8 April 2024, Microsoft Azure Synapse Runtime for Apache Spark 3.2 End of Support | Azure updates 22 March 2024, Microsoft Azure Synapse Analytics: Everything you need to know about Microsoft's cloud analytics platform 24 September 2023, DataScientest Migrate Microsoft Azure Synapse Analytics to Amazon Redshift using AWS SCT | Amazon Web Services 18 October 2023, AWS Blog Azure Synapse vs. Databricks: Data Platform Comparison 2024 26 March 2024, eWeek provided by Google News

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