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Longest Gap Between Token Events

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

The security team is reviewing API key rotation policy. In api_tokens, find the longest stretch between one token being issued and the next, and the longest stretch between consecutive token expirations. Return both maximum gaps.

Summary

The longest gap between token events.

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

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