I applied because I wanted to study aggregate functions and JOINs more after taking classes elsewhere! You explain things really well!!! The practice problems are still a bit difficult, but I feel like I'm organizing things more cleanly than before, so I'm really happy. It was definitely fun, so I applied for the practical class camp hehe. I'll learn more at the camp. *p.s. If you also record a separate practical project, I'll definitely take it. I think there will be a lot of demand!! Thank you.