RDS for SQL Server (Relational Database Service for SQL Server) is a relational database service with high performance and reliability. We provide 2008R2 high-availability version, 2012 high-availability version, 2016 high-availability version, and 2012 stand-alone basic version. It provides a Web interface to configure and operate the database instance. And, it supports reliable data backup and recovery, complete security management, perfect monitoring and easy scaling. Compared with the self-built database, RDS for SQL Server is more economical, professional, efficient, reliable, simpler and easier to use. Thus, it allows users to focus on their core businesses.