rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

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Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Neamar

Questions...

Ces questions permettent de vous situer vis à vis de la programmation et de l'informatique en général. Il est normal de ne pas tout connaître ;)

Écriture et lecture de code

Que fait la requête SQL suivante :

SELECT Marque, AVG(Prix)
FROM Produits
GROUP BY Marque