Consistent High-Quantity Revenue

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
L4

Interview Prompt

The merchandising team is reviewing revenue from products that customers reliably buy in multiples, not as one-off single-unit purchases. For each qualifying user and product pair, total the transaction revenue and lay it out so the team can read down customer by customer and see each one's top earners first.

Summary

Big orders, consistent revenue. A rare combination.

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