Profitable Categories by Price

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
L4

Interview Prompt

The `products` table holds one row per catalog item with its `category`, `price`, `rating` and an `in_stock` flag. Report the lowest price and the average rating for every category whose items average a rating of at least 3.0.

Summary

The most profitable categories.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your SQL against a real database
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision