Welcome to your interview.
The question is on your right: Month-over-Month Retention Query. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Explain how you would write a query to calculate the month-over-month retention rate of users based on their first integration setup date.