Although RDS allows you to quickly create a database cluster on the cloud, efficiently distributed OLTP (Online Transaction Processing) queries or elastic computing remain a challenge. How to load balance and manage data traffic between apps and databases, to deliver optimal user experience while maintaining query cost awareness? How to SQL audit or block list apps’ visits? This talk will focus on providing you with a solution for elastic and secure OLTP cloud computing with your MySQL, PostgreSQL, SQLServer, and Oracle database.