Buyers Who Never Browsed
An easy 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
- easy
- Seniority
- L3
Interview Prompt
The fraud team flagged a batch of purchases made by users who have never browsed the site. Find every transaction where the buyer has no record in page_views at all, and list each buyer's username with the transaction total, smallest amount first.
Summary
They bought without ever loading a page.
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