It was very helpful to have PL/SQL explained based on practical experience. It's the best. The environment I'm in also deals with a lot of SQL and PL/SQL, so I've been wondering when to study PL/SQL. I just searched the web and played around with it. The tips the instructor gave are actually a little different from my environment. The parts I use are a little different. But I can see parts that I can use someday! It was nice to be able to learn by following them. I gained a lot of insight. By the way, it's not common for a senior to share knowledge like this, and I'm grateful and will follow suit, especially for scratching an itchy area like PL/SQL compared to Java and the cloud. Below are the parts that I personally found helpful, written as I remember them. - bulk insert into & forall - collection - How to create procedures & functions - Basic principles of PL/SQL such as blocks - How to create dummy data - Data migration (this was really helpful) - Scheduler (I also gained a lot of insight from this) Thank you.