Email data contains a lot of interesting insights. We can find users from a specific organization by their email domain like @boogle.com or from education organizations by matching the top-level domain .edu.
We can target this group of users with a specific email campaign or use retargeting ads on platforms like Facebook.
In this exercise let’s try to find out how many users do we have with the business top-level domain: .biz.
For example, here’s a valid business email: foo@bar.biz.
About SQL Habit
Hi, it’s Anatoli, the author of SQL Habit. 
SQL Habit is a course (or, as some of the students say, “business simulator”). It’s based on a story of a fictional startup called Bindle. You’ll play a role of their Data Analyst 
and solve real-life challenges from Business, Marketing, and Product Management.
SQL Habit course is made of bite-sized lessons and exercises (you’re looking at one atm). They always have a real-life setting and detailed explanations. You can immediately apply everything you’ve learned at work. 
