What is RDS, a relational database? Can I use IDC?

Relational Database Service (RDS) makes it easier to establish, operate and expand relational databases through cloud services. Help enterprises solve the time-consuming and laborious database management, let enterprises have more time to focus on the application and business level, and save users' hardware costs and maintenance costs. In the past, servers only sold bare metal, no matter what packages are available now, such as Alibaba Cloud. This relational database is their advantage. At present, they support MySQL and MS SQL Server, and are fully compatible with existing commercial MySQL and MS SQL Server.

RDS is used with cloud server, and the internal network traffic is free.