Even if you already know JPA, I think it would be helpful to take a look at it at least once, and if a beginner reads it through completely, I believe it would be very beneficial.

Thanks to this course, I believe I was able to grow one step further in query tuning, which I previously thought was difficult. Even though I selected English as the language, I was able to complete the course relatively quickly thanks to the Korean subtitles. Thank you for providing such a great course in a convenient way.

This was a lecture that allowed me to think about aspects I hadn't considered before. I will continue to review and internalize these concepts going forward :)

This is a recommended course if you want to properly learn about advanced queries. You can easily learn advanced query usage techniques that you can't learn anywhere else through examples. It was great that you provided structural analysis of execution plans, and it was even better to understand by changing your thinking to a programming language approach.

This was truly an excellent lecture. Thanks to the challenge with Hyangnro hosted by Inflearn, I got to listen to this lecture, and it was great how you explained even the advanced parts in an easy-to-understand way. However, one slightly disappointing aspect was that there were some parts where the translation wasn't quite smooth. Still, the content itself is wonderful!

The explanation is really easy to understand, which is great! Especially the part where you explained the concepts with Java code - it really helped me understand well!

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perfact

The best!

You can acquire basic to advanced knowledge of SQL. Combining with major textbooks or famous books will aid in deeper understanding.