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SQL Window Functions for Funnels

NaviMediumSQL & Data Manipulation00:00
Navi
Your interviewer · Data Scientist
In session
Interviewer

Welcome to your interview for the Data Scientist role at Navi.

The question is on your right: SQL Window Functions for Funnels. 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. You have three graded attempts to score 7/10 or better.

Only Submit answer is graded - discussion is free practice.

Problem

How would you design SQL window function queries to analyze user funnels or transaction sequences over time at Navi?