SQL - Ludicrous 3
The goal of this quest series is to improve your SQL skills
Goals
- Improve your SQL skills
Codewars Katas
You need to resolve this two Codewars Katas
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SQL Basics: Simple PIVOTING data
codewars.com
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SQL Basics: Simple Hierarchical structure
codewars.com
Challenge
Codewars Katas
Once you have completed the katas, you can validate this quest yourself.
Ressources partagées sur cette quête
- Très bonne explication et exemple proche du kata RECURSIVEhttps://towardsdatascience.com/recursive-sql-queries-with-postgresql-87e2a453f1b