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Notifications Opened on Date

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
L3

Interview Prompt

After a campaign blast on January 2, 2026, the marketing team wants to know how many push notifications were actually opened that day.

Summary

One day, many pings. How many actually got opened?

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

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