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Double or Nothing

A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
SQL
Difficulty
hard
Seniority
L5

Interview Prompt

A pricing analyst is flagging products on the same shelf that carry wildly different stickers. Within each category, find every pair where one product costs at least twice the other, listing each pair only once.

Summary

Same shelf, wildly different stickers. Spot the pricing gaps.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your sql solution with real code execution
  4. Get instant feedback and a hire/no-hire decision

Related

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