The Shape of the Year
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
- L3
Interview Prompt
We're tracing a retail marketplace's revenue as it moves month by month across the calendar. For each month, report the total revenue, the number of transactions, and the average transaction value.
Summary
Revenue has a rhythm. Trace it, month by month.
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