Passed! It was a satisfying lecture. Thank you!

This is exactly the kind of lecture I was looking for. Lectures like this are hard to find. I tried many times to learn tuning and even bought books, but it was difficult because the terminology was too complex and abstract. Through this lecture, I feel like I have finally entered the advanced level of DB and the path to tuning, which feels great.

Hello, Coding Korea. I passed the 12th exam with a score of 95. (-5 points on Type 2) When I was worrying about how to start the practical exam for the 12th Big Data Analysis Certification... I happened to see the Pandas 100 Questions video on YouTube and started Python coding enjoyably(?). Seeing how kindly you teach, I ended up taking your Inflearn course as well. It was a lecture that allowed me to effectively learn everything from the basics to the actual exam types and flow in a short period of time!! The material links you shared were very helpful, the AI problems were great, and the tips during the lectures helped a lot too. Thank you!! I wish you happiness.

I really enjoyed taking this SQL tuning course. After just writing simple queries at work, studying tuning like this makes me feel like my horizons have broadened. Your explanations are very clear and easy to understand, and I also appreciate that you provide the course materials separately via GitBook!! However, I wish there were more practice problems ㅠㅠ I would be grateful if you could create a course focused on problem-solving or on pandas next time! Thank you so much for the great course.

Oracle seems really great for accurately understanding and organizing the grammar I know. The examples are familiar too, so they stick in my head easily. Using the note feature while studying helps me practice well.