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Median Failure Rate by Table

A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
SQL
Difficulty
hard
Seniority
L5

Interview Prompt

A data-quality monitoring system logs a failure percentage each time it runs a check against a table. Find the median failure percentage for each table being monitored.

Summary

Half the tables fail more than this.

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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