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Pivot Event Counts
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- staff
Problem
Instead of one row per event, produce one row per user with separate columns counting each event type: clicks, views, purchases.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a live PostgreSQL database and grades it instantly.