Amazon RDS is the Relational Database Service offered as a web service by Amazon.
It makes it easy to set-up and operate a relational database in the cloud. 
It provides a very cost-effective way to use industry’s leading RDBMS software as a managed service. Because of this web service from amazon AWS, You do not have to buy any server or install any database software in it. 
You just have subscribe to the AWS RDS web service and start using the RDBMS features after some initial configuration involving memory and CPU capacity allocation etc . 
List of topics covered in this tutorial : 
Amazon RDS - Overview 
Amazon RDS - Environment
Amazon RDS - Interfaces 
Amazon RDS - DB Instances 
Amazon RDS - DB Storages 
Amazon RDS - MS SQL features 
Amazon RDS - MS SQL Creating DB 
Amazon RDS - MS SQL Connecting to DB 
Amazon RDS - MS SQL DB Export Import 
Amazon RDS - MS SQL DB with SSL 
Amazon RDS - MS SQL DBA Tasks 
Amazon RDS - Oracle Features 
Amazon RDS - Oracle Creating DB 
Amazon RDS - Oracle Connecting to DB
Amazon RDS - Oracle DB Data Import 
Amazon RDS - Oracle DBA Tasks 
Amazon RDS - MariaDB Features
Amazon RDS - MariaDB Creating DB 
Amazon RDS - MariaDB Connecting to DB 
Amazon RDS - MariaDB Data Import 
Amazon RDS - PostgreSQL Features 
Amazon RDS - PostgresSQL creating DB 
Amazon RDS - PostgreSQL Connecting to DB 
Amazon RDS - PostgreSQL Data Import 
Amazon RDS - MySQL Features 
Amazon RDS - MySQL Creating DB
Amazon RDS - MySQL Connecting to DB 
Amazon RDS - MySQL DB Export Import
 Amazon RDS - MySQL DBA Tasks 
Amazon RDS - Multi-AZ Deployments 
Amazon RDS - DB Snapshots 
Amazon RDS - DB Monitoring 
Amazon RDS - Event Notifications 
Amazon RDS - DB Access Control