SQL Practice Problems by Sylvia Moestl Vasilik: book review

And I was working on these practice problems all weekend. I realized how difficult they are for me, and I supposed to be a database administrator with more than 10 years of experience. Humility is the word that came to my mind, and I hate humility. BUY the book:  http://a.co/d/bke6lOX  YouTube playlist of myself solving the book: https://www.youtube.com/playlist?list=PLrLK-3-j0W-7ndkqn1lJEP3SGTLhohxfU  Links to the repository: GitLab: https://gitlab.com/JorgeEscobar/sql-practice-problems GitHub: https://github.com/RicardoEscobar/sql-practice-problems