Every time I looked at an execution plan, I found it difficult and didn't know how to interpret it, but through this lecture, I was able to clearly understand, thinking, "Ah! So that's what it is!" The terminology is well-organized, and the lecture serves as a great guide by explaining the approach and what needs to be done step-by-step.

I really enjoyed the lecture. Thank you so much for including the last partition case!

Although most of the content was familiar to me as a 5-year developer, it was good to be able to clearly organize the theory The audio volume does fluctuate between lectures though

The lecture was easy to understand and practice-oriented, which was good, but the difficulty was lower than expected, which was disappointing. More advanced content would have been better.

It seems like a lecture that can be put to practical use immediately.

It seems like a lecture that makes you think twice before writing a query. Thank you.

I think it's really great that you explained in an easy-to-understand way how to optimize the index search. The only thing I'm disappointed about is that the course duration is 12 months 😭,😭 I wish you could let me take the course for life even if I have to pay more. :)

I read the book well, so I bought the lecture. Thank you for making a good book. I am watching the lecture.