I was thinking about skipping this since it's an introductory course, but I ended up completing the entire course. While developing, I tend to only use what I need, so this helped me recall concepts I had forgotten. Also, it was great that you organized the SQL execution order during the lecture. I never thought to organize it since it seemed obvious. Before, when something didn't work, I would just try it elsewhere, but thanks to this, I think I'll be able to make modifications based on understanding the principles.