Loyalty's Double Tap

A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
SQL
Difficulty
medium
Seniority
L3

Interview Prompt

For the growth team, count the impressions each `ad_campaign` in `ad_impressions` served to customers who received a loyalty push in `push_notifs`, broken down by the platform that push went out on, as `impression_count`.

Summary

When a nudge and a banner team up.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your SQL against a real database
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision