Has someone already done the Zoo's SQL Coding Procedure?

Question

I would like you to explain or pass me the correct code because I am in desperation not to know what my mistake is and would like an explanation.

Answer 1

We don't do homeworks here, not even we reveal the solutions, as it is against the guidelines. We only help each other to solve their problems on their own.

Please, show us your code so that we can help you to debug it. Thanks!

https://www.sololearn.com/discuss/1316935/?ref=app
https://www.sololearn.com/discuss/333866/?ref=app