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The JSON Files That Became a Data Mart
A medium Data Modeling interview practice problem on DataDriven. Write and execute real data modeling code with instant grading.
- Domain
- Data Modeling
- Difficulty
- medium
- Seniority
- senior, staff
Problem
You are given three sample JSON data files from a client's source system: one for orders with embedded customer details and line items, one for products with nested category hierarchies, and one for shipments with address objects and status history arrays. Design a relational data mart from these inputs.
Practice This Problem
Solve this Data Modeling problem with real code execution. DataDriven runs your solution and grades it instantly.