Price Pairs
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
The pricing analyst wants to flag wide price gaps inside a single category. Find every pair of products in the same category where one product costs at least twice as much as the other, and list each pair exactly once. Return both product_name values, the shared category, and both prices.
Summary
Same shelf, wildly different stickers. Spot the pricing gaps.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision