Revision
1. Introduction

Instruction

And… finally! You've made it to the last part of our course. It's time for our ultimate quiz! Do you remember string functions? Numerical functions? Dates? Aggregates? It's time to check up on all of that! We've prepared 9 questions for you!

As always, we'll start with the introduction of our tables. Today, we'll work with Mensa, the oldest IQ society in the world! Of course, don't take it too seriously – these data are purely fictional.

Exercise

Select all the information from the table branch.

Nothing extraordinary: id, country and city of the branch.

Console

Code editor

Result

TableConsole