DBDB.io The Encyclopedia of Database Systems · Est. 2017
Database of Databases

Database Entry

Azure SQL Database


Microsoft Azure SQL Database is a managed cloud database-as-a-service based. It shares the SQL Server 2016 codebase. It is compatible with SQL Server 2014 and 2016 and supports most of the features available in SQL Server 2016.

Country of Origin
US
Start Year
2009 [05]
Former Names
SQL Azure, SQL Server Data Services, SQL Services, Windows Azure SQL Database
Project Type
Commercial
Written in
C++
Derived From
SQL Server
Inspired By
SQL Server
Compatible With
SQL Server
Operating Systems
Hosted, HP-UX, Illumos
License
Proprietary

Database Entry

Azure SQL Database


Microsoft Azure SQL Database is a managed cloud database-as-a-service based. It shares the SQL Server 2016 codebase. It is compatible with SQL Server 2014 and 2016 and supports most of the features available in SQL Server 2016.

History[03]


Microsoft Azure SQL Database in 2009 was announced as a child of Microsoft SQL Server that is optimized and built for deployment on cloud environments. The cloud service went live in 2010.

Data Model


Indexes[04]


Refer to (Microsoft SQL Server). Along with the indexes provided from the SQL Server codebase, Azure SQL Database produces recommendations for ADD/DROP INDEX in order to optimize its plans. It does this by monitoring the performance of queries across all SQL Database instances on the Azure cloud. It performance statistics of queries across all databases to develop models to estimate performance gains on a non-existent index for a certain query in a database instance. These estimates are used to create recommendations for adding and dropping indexes and the application can choose to automatically have these recommendations applied.

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