It was a helpful lecture.

I like that you explained it in detail.

I was able to get a feel for SQL in a short period of time at a low price. However, it is difficult to apply it by just listening to this lecture, and I think I need to practice a lot myself. Thank you, instructor.

It was great to understand SQL in general!

I'm satisfied~!!

It's easy to listen to haha

great !!!!

I was worried because the Donggang was short, but it is very helpful for beginners. It is good that only useful information is summarized and shown.

No words needed!

I am getting very useful practical information. Thank you^^