title: Restore backup of an Azure SQL Database to another Azure SQL Database of another resource group
body: <p>I need to move all the data of a production database to its staging version.
  These 2 databases are Azure SQL Databases from 2 different resource groups.</p>
  <p>I have read some guides on how to achieve this exporting and importing .bacpac files, but this approach doesn't allow to import into an existing database.</p>
  <p>I'm looking for a way for migrating the data without creating a new database, but targeting the already existing one.</p>