Azure SQL Database  Managed Instance is fully-managed PaaS service that provides advanced disaster-recovery capabilities. Even if you accidentally drop the database or someone drops your database as part of security attack, Managed Instance will enable you to easily recover the dropped database. Azure SQL Managed Instance performs automatic backups of you database every 5-10... Read more

https://blogs.msdn.microsoft.com/sqlserverstorageengine/2019/01/21/recreate-dropped-database-on-azure-sql-managed-instance/