4.7 Import a Notebook
You can import notebooks across Pluggable Databases (PDBs) into your
        workspace. Oracle Machine Learning UI supports the import of notebooks in the native format
            (.dsnb), Zeppelin (.json) and Jupyter
            (.ipynb) notebooks.
               
Oracle Machine Learning UI supports the import of both Zeppelin (.json) and Jupyter (.ipynb) notebooks. 
               Note:
Starting in Oracle Database 20c,"database" refers specifically to the data files of a multitenant container database (CDB), pluggable database (PDB), or application container.To import a notebook: 
               Parent topic: OML Notebooks