Programming with PL/SQL

https://apex.oracle.com/en/ - this link for working with online workspace you even could compile you scripts there and illustrates it, but if on this subject would be the project you will need this Virtual machine or Oracle EE version for Windows

This torrent file to download the Oracle Developer Day who could not do this from Google drive

https://www.oracle.com/technetwork/community/developer-vms-192663.html - This link for installing everything from the beginning !)

https://www.oracle.com/technetwork/database/enterprise-edition/databaseappdev-vm-161299.html Link for MacOS users. User name: mir-17@mail.ru password: !Q2w3e4r5t for Oracle.com