1. Click the “See All” link next to Oracle Database Software Download link to find and download the “Oracle Database Examples” .zip file
2. unzip the .zip file and run “setup.exe”
3. Log on to SQL*Plus as SYS and connect using the AS SYSDBA privilege.
sqlplus connect sys as sysdba
Enter password: password
4. run the hr_main.sql script, use the following command:
SQL> @?/demo/schema/human_resources/hr_main.sql
5. Enter the parameters required by the hr_mail.sql script
6. Connect to the HR schema with username “hr” with Oracle SQL developer
6
ref: https://docs.oracle.com/database/121/COMSC/installation.htm#COMSC00004