Spending Tiers
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
- L4
Interview Prompt
The loyalty program buckets customers by how their typical spend compares to everyone else's. For each user, compare their average transaction amount to the overall average across all transactions, and label them high, medium, or low. Return the user_id and their tier.
Summary
High rollers, mid-spenders, and the frugal. Everyone gets a tier.
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