Campaign Bookend Engagement
A hard SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L5
Problem
For each ad campaign, what percentage of its total impressions happened on the campaign's very first day versus its very last day?
Summary
First impression versus last. The gap.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.