slee's honest review, SQL that you can use yourself - from basics to practical use course
Reviews 1
Average rating 5
Suddenly, my company asked me to do SQL, so I read a book and listened to a lecture, and I learned a lot. I used to just write without thinking, but now I know how to extract data! In particular, there was no talk about group by verification in the book... ㅠㅠ I will practice more based on the lecture and use it well in my work. Thank you for the great lecture!
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Hello slee :) I'm grateful that it was helpful 😢 Verification is as important as extraction, so I think it would be good to make it a habit to verify :) I hope you practice more based on what you've studied and improve your skills. Thank you.
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