Peak Season

A medium 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
medium
Seniority
L4

Interview Prompt

Finance's peak-season forecast leans on a single region and calendar month as the profit high point, and nobody has confirmed which pairing actually earns that spot. Match `orders` to `transactions` whose ID falls in the same bucket modulo 100, and return the region and transaction month with the highest total order profit, along with that total.

Summary

One region, one month. Peak profit.

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