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Active Users by Session Count

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
mid, senior

Interview Prompt

The product org tracks engagement trends month over month. For the last 6 months, show the count of unique active users and the average session duration per month. Only include months where the total number of sessions exceeded 3. Present the results chronologically.

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