When moving your applications to the cloud, it makes sense to start using Azure Services to get the best service, highest availability (SLA) and worry free maintenance provided by Azure. The next step is to use Azure AD identities with Azure SQL Database.
Within a few steps you will have Azure AD user authentication setup.
Last week I received the question from a customer where to get the SQL license key… By default you will see the key during SQL installation, but with an Azure deployed SQL virtual machine you will never get to see the key, as its deployed from the Azure Portal.
Retreive the key from DefaultSetup.ini
So within a few clicks you will be able to retreive the key.