Unmatched Categories
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
We run an online store where every product row carries a category and a stock flag. Find the categories with three or more products out of stock right now, for the restock list.
Summary
Categories with nothing on the shelf. Empty aisles.
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