Loading interview...

Daily and Weekly Active Users

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

Interview Prompt

Given a user_sessions table, write a query that returns the count of distinct active users per calendar day, ordered chronologically. A user is active on a day if they had at least one session that day.

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