john's honest review, [A hundred words are not as good as seeing once] Advanced SQL problem solving for data analysis course
Reviews 27
Average rating 4.9
Why do I feel like it's not enough even though I've completed all the lectures.. When I spend time solving problems and looking at the explanations, I think, 'Wow, how did they come up with that method!?'ㅠ I'm looking forward to the next lecture.
5

