Amazon RDS is a relational database service that is capable of running multiple different database engines, which include Amazon Aurora, PostgreSQL, MariaDB, MySQL, the SQL service, and Oracle Database. They can be run across a variety of different instance types, which can be optimized for performance and memory.
Again, much like the storage services, you will need to be careful when architecting your databases based on the data that is going to be stored on them, and so, of course, they also have encryption capabilities, which are very easy to implement.
Firstly, let's take a look at encryption at rest for an RDS database.