20. Count total number of customers

“I was so afraid that we’ll have no signups at all, the numbers don’t look bad!” said Gessica, “Has anyone purchased though?”

Let’s practice combining filters more and calculate how many users who signed up within the first week are customers?

⚠ Type SQL queries in the SQL Editor ☝ to find the answer to this exercise. Do your research in the SQL Editor and then submit numeric or text answer via this form. ⚠


We already know how to filter signups from the first week after Bindle was launched. ✅

Now we need to filter it even more and from all such user records select the ones with a customer status. 🔍


FROM users
  created_at > '2018-01-01' 
  AND created_at < '2018-01-08'
  AND status = 'customer'

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 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. 🚀

“well worth the money”

Fluent in SQL in a month

Master Data Analysis with SQL with real life examples from Product Management, Marketing, Finance and more.
-- Type in your query here. You might want to start by listing all records: SELECT * FROM users
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