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The Churner Who Came Back
A hard Data Modeling interview practice problem on DataDriven. Write and execute real data modeling code with instant grading.
- Domain
- Data Modeling
- Difficulty
- hard
- Seniority
- senior, staff
Problem
We have a global subscription business with hundreds of millions of subscribers across multiple plan tiers and regions. Subscribers can upgrade, downgrade, pause, cancel, and re-subscribe. Finance and product analytics need a data model that supports churn analysis, revenue reporting, and plan mix reporting. Design the data model.
Practice This Problem
Solve this Data Modeling problem with real code execution. DataDriven runs your solution and grades it instantly.