AWS Elastic Beanstalk doesn’t manage databases, but AWS does provide the option of integrating the AWS RDS (Relational Database Service) and that helps you to add a database instance to your Elastic Beanstalk environment. Even you have the option to add MySQL, Oracle, PostgreSQL, or even SQL Server database.
If you are interested in learning AWS Elastic Beanstalk, then I would recommend you to take up the AWS DevOps certification course which helps you in gaining hands-on experience with its 23 guided projects apart from instructor-led online training of 70 hrs.
Also, do watch our YouTube video on the AWS Elastic Beanstalk tutorial to help you get started.