I only vaguely know the name AWS and have only shallow knowledge of CS. So I skipped over it because I didn't understand other lectures. This lecture kindly explains CS knowledge, so it's good because I don't have much difficulty understanding it. However, it was disappointing that there was no part where you actually send a query to RDS to get data. However, I think there is no lecture more appropriate and better than this among people at a similar level to me.