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Average DQ Fail Rate

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

Domain
SQL
Difficulty
easy
Seniority
junior, mid

Interview Prompt

Several downstream consumers are complaining about bad data but nobody knows which source tables are the worst offenders. Compute the average data quality check fail rate per table, but only surface tables where more than one validation rule has actually been evaluated. Show the table name and its average fail percentage.

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