Holiday Promo Campaign Click Year
An easy 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
- easy
- Seniority
- L3
Interview Prompt
Our ad impressions log records every impression served for each campaign, along with a flag for whether it was clicked. For the HOLIDAY_PROMO campaign, list each month in which it drew clicks.
Summary
One year, the holiday campaign exploded.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision