64. Calculate signups per day, per country

So far we’ve been working with absolute numbers of signups. We’ve also learned how to group them by country. It could help us to identify our biggest markets (basically countries with highest amount of users or customers).

Still, as we’ve learned in the previous chapter, absolute numbers are vanity metrics. They can barely help us to make decisions. We need to look at data in its dynamics, for example number of signups per day. That way we can act on it – if the number of daily signups is rapidly going down we probably should turn off some...

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Anatoli Makarevich, author of SQL Habit 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 (you’re looking at one atm) and exercises. They always have a real-life setting and detailed explanations. You can immediately apply everything you’ve learned at work. 🚀

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