Category Sales Summary
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
The merchandising team needs a 2026 sales overview by product category. For each category with at least one sale, show the number of unique transactions and total revenue, sorted from highest revenue to lowest.
Summary
Category by category. How did they do?
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