Hello! Young-han! 😊😊 I recently finished a project where I handled everything from database design and API specifications for the main home screen features to backend code and frontend screen work. Even working on a single page, the required fields and relationships were quite complex. I took the initially designed database and worked with it, going through continuous modifications and thinking "Oh... I shouldn't have designed it this way," "This would be better -> (after some time passes) That wasn't right either," experiencing many trials and errors. What I realized through this process was "the importance of database design." If I had designed it well from the beginning, there would have been fewer code modifications, and I could have visualized how the overall flow would work. However, since the database design wasn't stable, the code became complex as well. This created a thirst for database lectures. Then I heard the news that you, Young-han, had opened a database course, and I came running right away! I really enjoyed the database beginner course, and I'll continue learning well with the basic course too!!! Thank you so much for creating the database lectures 🙇‍♀️