Design a daily_sales_summary table that pre-aggregates transaction data by date and product
A medium Data Modeling mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Data Modeling
- Difficulty
- medium
Interview Prompt
Design a daily_sales_summary table that pre-aggregates transaction data by date and product. Include metrics like total_revenue, units_sold, and transaction_count to avoid querying raw transactions for reports.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your data modeling solution with real code execution
- Get instant feedback and a hire/no-hire decision