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Regional Sales Growth QoQ

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
mid

Interview Prompt

Compare total transaction amounts in Q4 vs Q3 to compute quarter-over-quarter revenue growth by region. Growth is ((Q4 total minus Q3 total) / Q3 total) * 100. Only include regions with sales in both quarters. Return the region and growth percentage.

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