Running marketing Identifying power referral users

82. Identifying power referral users

When running a referral program, it’s important to understandwho already shares your app, and who are those power users? Because who knows, maybe there’re more. 🚀

In this exercise, let’s find out the user ID of the most powerful referral user (a user who invited the most users).

The referrer_id column inside the users table contains a value of another user ID (ID of a user whose referral link was used). That user ID (inside the referrer_id column) is exactly the user ID we need to solve the exercise.

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Anatoli Makarevich, author of SQL Habit About SQL Habit

Hi, it’s Anatoli, the author of SQL Habit. 👋

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-- Type in your query here. You might want to start by listing all records: SELECT * FROM users
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