Tutorial
Cheatsheet
Query
Chapter 1
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Chapter 2
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Chapter 3
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Exercise 4
How many titles do
Wladimir Klitschko
and
Mike Tyson
have together? Use
Union
for this exercise.
