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Disabled Flag Ratio

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
junior, mid

Interview Prompt

A rollout on January 10, 2026 disabled several feature flags at once, and the release manager wants to know how widespread the impact was. Among flags updated on that date, what fraction are disabled? Return a single decimal value.

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