Impressions by Search Keyword
A hard 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
- hard
- Seniority
- L3
Interview Prompt
Ad sales keeps a leaderboard of campaigns by how much of their delivery reached people who use search, working from `ad_impressions` and `search_queries`. Show each campaign with its impression count, leaving out the time-boxed sale campaigns.
Summary
Campaign performance, keyword by keyword.
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