SQL - Fundamentals 6

The goal of this quest series is to improve your SQL skills
Goals
- Improve your SQL skills
Codewars Katas
You need to resolve this three Codewars Katas
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SQL Basics: Simple JOIN
codewars.com
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SQL Basics: Simple GROUP BY
codewars.com
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SQL Basics: Simple JOIN with COUNT
codewars.com
Challenge
Codewars Katas
Once you have completed the katas, you can validate this quest yourself.
Ressources partagées sur cette quête
- Car les solutions si on galère vraimenthttps://github.com/pzoladkiewicz/CodeWars/blob/master/sql/7%20kyu/SQL%20Basics:%20Simple%20JOIN%20with%20COUNT.md