The Lion's Share

A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
SQL
Difficulty
medium
Seniority
mid

Interview Prompt

The merchandising finance team wants to see which product categories bring in the most revenue. For each category, show its total purchase revenue and how many purchases produced it, with the biggest earners listed first.

Summary

Every category claims its slice. Find out who really owns the table.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your SQL against a real database
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision