Extreme Category Totals
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- L5
Interview Prompt
From this calendar year's transactions, find the product categories with the highest total sales and the lowest total sales. Combine transactions with products to get the category. Return both category names and their totals.
Summary
The highest and the lowest. Both are interesting.
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