Category Deep Dive
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
Strategy wants a full financial picture per product category. For each category, compute total revenue (sum of transaction amounts) and total units sold (sum of quantities). Assign each category a position by revenue, highest first, with ties sharing a position. Return the category, revenue, units, and position.
Summary
Revenue, units, rank. The full category report card.
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