To perform Oracle Machine Learning tasks, you can access Oracle Machine Learning Notebooks from Autonomous Database

• Access Oracle Machine Learning User Interface
  You can access Oracle Machine Learning User Interface from Autonomous Database.
• Create a Notebook from the Example Templates
  Using the Oracle Machine Learning Example Templates, you can create a notebook from the available templates.
• Edit Your Notebook Classic
  Upon creating an OML Notebook Classic, it opens automatically, presenting you with a single paragraph using the default %sql interpreter. You can change the interpreter by explicitly specifying one of %script, %python, %sql , %r , %md or %conda.