We’ve already talked about how important it is to keep great documentation of successes and failures. In case of marketing campaigns it allows us to know what’s working for us (showing home screen of our app, images of people etc) or what’s absolutely prohibited (black backgrounds, messages of certain types).
Let’s find out what marketing campaign has the biggest spend (among all campaigns and marketing channels).
Type utm_campaign as an answer.
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. 
