Reference
https://developer.oracle.com/java
https://github.com/oracle/learning-library/tree/master/workshops
https://oss.oracle.com/
https://github.com/oracle
https://github.com/mysqlFocus On Oracle
Installing, Backup & Recovery, Performance Tuning,
Troubleshooting, Upgrading, Patching
Oracle Engineered System
https://github.com/oracle/learning-library/tree/master/workshops
https://oss.oracle.com/
https://github.com/oracle
https://github.com/mysql