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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

Interview Prompt

The email marketing team is preparing a campaign blast and needs a clean contact list with no blank fields. For each user, show their username, email address (substituting 'unknown' if the email is missing), and age bucket (substituting 'unspecified' if the age bucket is missing). Only include users whose account is currently active.

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