Use AWS Relational Database Service, a web service for setting up, operating and scaling relational databases. More information: https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/index.html.
aws rds subcommand help
aws rds stop-db-instance --db-instance-identifier instance_identifier
aws rds start-db-instance --db-instance-identifier instance_identifier
aws rds modify-db-instance --db-instance-identifier instance_identifier parameters --apply-immediately
aws rds apply-pending-maintenance-action --resource-identifier database_arn --apply-action system-update --opt-in-type immediate
aws rds modify-db-instance --db-instance-identifier old_instance_identifier --new-db-instance-identifier new_instance_identifier
aws rds reboot-db-instance --db-instance-identifier instance_identifier
aws rds delete-db-instance --db-instance-identifier instance_identifier --final-db-snapshot-identifier snapshot_identifier --delete-automated-backups