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Top 2 Active Push Days

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
junior, mid

Interview Prompt

During a push notification window from August 1 to 7, which two days saw the most unique users receiving a notification? Show the day of week number (0=Sunday through 6=Saturday), date, and unique user count.

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