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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

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.

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