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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
senior

Interview Prompt

The security team is reviewing API key rotation policy. Calculate the longest period in days between consecutive token issuances and the longest period between consecutive token expirations in api_tokens. Ignore null expiration dates. Return both maximum gap values.

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