I’m going big on SQL these days. I always loved SQL, but this couple last days I’m going hard on learning and mastering it. There’s still lot to do, many courses to take, many books to read, and many exercises to do.
Talking about exercises, this guys Nick Singh just lunched a site with questions, it’s not super different from hackerrank and stuff, but the thing I liked the most is that it’s well explained, well put, good design and many interesting questions.
So, check it out clicking here https://datalemur.com?referralCode=F6dizRnl. (this is a referral link, just in case you use it and sig-in I can end up some bonus or something).