Oracle Autonomous Database is a family of self-driving, self-securing, and self-repairing cloud services. You can sign up for an Oracle Cloud Free Tier account and create a database instance.

• Provision an Autonomous Database
  A LiveLabs workshop (a set of labs) that teaches you to manage and monitor Autonomous Database (ADB) is available. A part of the workshop aims to provision an Autonomous Database instance on Oracle Cloud.
• Create and Update User Accounts for Oracle Machine Learning Components on Autonomous Database
  An administrator can add an existing database user account to use with Oracle Machine Learning components or create a new user account and user credentials with the Oracle Machine Learning User Management interface.
• Create User
  An administrator creates new user accounts and user credentials for Oracle Machine Learning in the User Management interface.
• Add Existing Database User Account to Oracle Machine Learning Components
  As the ADMIN user you can add an existing database user account for Oracle Machine Learning components.