Azure SQL Database

Azure SQL Database is the fully managed, intelligent Platform as a Service (PaaS) relational database built on the latest stable SQL Server engine, delivering 99.99% availability.

This is your fully managed SQL PaaS solution: a high-performance, intelligent database built on the latest stable SQL Server engine. We handle the OS patching, backups, and monitoring, so your team focuses on application logic (PaaS). You get 99.99% availability with built-in high availability and disaster recovery. Scale performance dynamically using either the vCore or DTU purchasing models, and leverage advanced features like intelligent query processing and in-memory technologies. Start with the free offer: 100,000 vCore seconds of serverless compute and 32 GB of storage every month.

https://azure.microsoft.com/en-us/products/azure-sql/database