How to understand DTU: https://sqlperformance.com/2017/03/azure/what-the-heck-is-a-dtu Performance recommendations: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-advisor Adaptive query processing: https://docs.microsoft.com/pl-pl/sql/relational-databases/performance/adaptive-query-processing?view=sql-server-2017 Securing SQL Database: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-security-overview Read scale-out: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-read-scale-out Sharding: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-elastic-scale-introduction