A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Seniority

L5

Problem

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.

Summary

The longest gap between token events.

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