What is Database instances - AWS Course - Intellipaat
In the AWS Cloud, a DB instance is a standalone database environment. The DB instance is the fundamental building block of Amazon RDS.
One or more user-created databases may exist in your DB instance. You can use the same tools and applications to access your DB instance as you would a standalone database instance. A DB instance can be created and modified using the AWS Command Line Interface (AWS CLI), the Amazon RDS API, or the AWS Management Console.