Amazon RDS (Relational Database Service) makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient, resizable capacity while automating time-consuming administration tasks such as hardware provisioning, database setup, patching, and backups.
Example of creating an RDS instance using AWS CLI:
aws rds create-db-instance --db-instance-identifier mydbinstance --db-instance-class db.t2.micro --engine mysql --master-username admin --master-user-password password --allocated-storage 20