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Users With API Errors

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
L3

Interview Prompt

How many unique users have triggered at least one API error? An API error is any call that returned a status code of 400 or higher.

Summary

Count unique users who have triggered an API error response

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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