Weekly Transaction Volume
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've got a transactions table and want to track how Q1 2026 sales volume moved week over week. Total the `quantity` sold in each week and return the week's start date next to its total.
Summary
Weekly volume. The pulse.
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