Explanation:
Cloud features such as scalability, high-availability and multi-tenant capability are included, reducing the amount of coding that developers must do.
Single databases in Azure SQL Database support manual dynamic scalability, but not autoscale.
https://azure.microsoft.com/en-gb/overview/what-is-paas/
https://docs.microsoft.com/en-us/azure/azure-sql/database/scale-resources
https://docs.microsoft.com/en-us/azure/azure-sql/database/sql-database-paas-overview