The Shape of a Day

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

Capacity planning wants the shape of an average day. For each hour of the clock, give the average number of calls that land in a typical day, busiest first.

Summary

Traffic has a rhythm across the hours. Find where it runs busiest.

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