Git isn't hard to learn, and when you combine Git and GitHub, you've just made the learning process significantly easier. This two-hour Git and GitHub video tutorial shows you how to get started with ...
(SELECT SUM(montant) FROM commandes WHERE client_id = clients.id) AS montant_total (SELECT COUNT(*) FROM commandes WHERE client_id = clients.id) AS nombre_commandes, (SELECT AVG(montant) FROM ...
Learn SQL fundamentals. Step-by-Step Path. Contribute to salhaidari/sql_course development by creating an account on GitHub.
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