Azure SQL Database is a general-purpose relational database, provided as a managed service.
With it, you can create a highly available and high-performance data storage layer for the applications and solutions in Azure.
SQL Database can be the right choice for a variety of modern cloud applications because it enables you to process both relational data and non-relational structures, such as graphs, JSON, spatial, and XML.
There are various ways of connecting to your Azure SQL Database, some of them are:
For more info on how to connect to a SQL database, refer to https://docs.microsoft.com/en-us/azure/sql-database/sql-database-connect-query