The Heaviest Carts
A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid
Interview Prompt
The merchandising team wants to see which products drive the most spend within each age cohort. For each age bucket, return the product id and its total revenue for the three products that earned the most, biggest earner first.
Summary
Inside every age group, a few customers carry the basket. Find them.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision