Single Instance

Single Instance databases are hosted as a single database on a single logical server. These databases do not have access to the complete features provided by SQL Server. Each database is isolated and portable. Single instances support the vCPU-based and DTU-based purchasing models that we discussed earlier.

Another added advantage of a single database is cost-efficiency. If you are in a vCore-based model, you can opt for lower compute and storage resources to optimize costs. If you need more compute or storage power, you can always scale up. Dynamic scalability is a prominent feature of single instances that helps to scale resources dynamically based on business requirements. Single instances allow existing SQL Server customers to lift and shift their on-premises applications to the cloud.

Other features include availability, monitoring, and security.

When we started our section on Azure SQL Database, we mentioned elastic pools as well. You can also...