Problem
Write a SQL query to compare current-week and previous-week performance for a product metric using window functions.
Practicing as: Data Scientist interview at RevolutHi, I'll play your Revolut interviewer for the Data Scientist role. Candidates describe these interviews as mixed and moderately difficult, so expect me to be professional and fair. Take your time with the question above and answer like we're in the room.
You are practicing as a guest. Sign up free to get your answer graded with AI feedback. Your draft stays right here.
