DBMS > Microsoft Azure SQL Database vs. TempoIQ vs. Yandex Database (YDB)

System Properties Comparison Microsoft Azure SQL Database vs. TempoIQ vs. Yandex Database (YDB)

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Editorial information provided by DB-Engines
Name	Microsoft Azure SQL Database formerly SQL Azure  Xexclude from comparison	TempoIQ formerly TempoDB  Xexclude from comparison	Yandex Database (YDB)  Xexclude from comparison
		TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.
Description	Database as a Service offering with high compatibility to Microsoft SQL Server	Scalable analytics DBMS for sensor data, provided as a service (SaaS)	A distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database model	Relational DBMS	Time Series DBMS	Document store Relational DBMS
Secondary database models	Document store Graph DBMS Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 84.89 Rank #15   Overall #10   Relational DBMS		Score 0.50 Rank #241   Overall #37   Document stores #116   Relational DBMS
Website	azure.microsoft.com/­en-us/­services/­sql-database	tempoiq.com (offline)	cloud.yandex.com/­en/­services/­ydb github.com/­ydb-platform/­ydb ydb.tech
Technical documentation	docs.microsoft.com/­en-us/­azure/­azure-sql		cloud.yandex.com/­en/­docs/­ydb ydb.tech/­en/­docs
Developer	Microsoft	TempoIQ	Yandex
Initial release	2010	2012	2019
Current release	V12
License Commercial or Open Source	commercial	commercial	Open Source Apache 2.0; commercial license available
Cloud-based only Only available as a cloud service	yes	yes	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	C++
Server operating systems	hosted		Linux
Data scheme	yes	schema-free	Flexible Schema (defined schema, partial schema, schema free)
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.	yes	no	no
Secondary indexes	yes		yes
SQL Support of SQL	yes	no	SQL-like query language (YQL)
APIs and other access methods	ADO.NET JDBC ODBC	HTTP API	RESTful HTTP API (DynamoDB compatible)
Supported programming languages	.Net C# Java JavaScript (Node.js) PHP Python Ruby	C# Java JavaScript Node.js Python Ruby	Go Java JavaScript (Node.js) PHP Python
Server-side scripts Stored procedures	Transact SQL	no	no
Triggers	yes	yes Realtime Alerts
Partitioning methods Methods for storing different data on different nodes			Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes, with always 3 replicas available		Active-passive shard replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	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	no	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		no	no
User concepts Access control	fine grained access rights according to SQL-standard	simple authentication-based access control	Access rights defined for Yandex Cloud users
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More resources
	Microsoft Azure SQL Database formerly SQL Azure	TempoIQ formerly TempoDB	Yandex Database (YDB)
DB-Engines blog posts	PostgreSQL is the DBMS of the Year 2020 4 January 2021, Paul Andlinger, Matthias Gelbmann Cloud-based DBMS's popularity grows at high rates 12 December 2019, Paul Andlinger The popularity of cloud-based DBMSs has increased tenfold in four years 7 February 2017, Matthias Gelbmann show all