Return user_id, the count of transactions with quantity >= 3 as big_orders, and the count of transac

A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain

SQL

Difficulty

medium

Interview Prompt

Return user_id, the count of transactions with quantity >= 3 as big_orders, and the count of transactions with quantity = 1 as single_orders. Order by big_orders DESC, user_id.

How This Interview Works

1. Read the vague prompt (just like a real interview)
2. Ask clarifying questions to the AI interviewer
3. Write your sql solution with real code execution
4. Get instant feedback and a hire/no-hire decision