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Provider Spend Variance Between Halves

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
mid

Interview Prompt

Compare cloud spend between the first half (Jan through Jun) and second half (Jul through Dec) of 2026. For each provider, compute the total amount in each half, then show the difference (second half minus first half). Rank providers from biggest increase to smallest. Return the provider and amount difference.

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