Dataford
Interview QuestionsInterview GuidesExperiencesMock InterviewsPricing
Get started

SQL Rolling Average with Window Functions

Medium
MediumSQL & Data ManipulationWindow FunctionsDate FunctionsRunning Totals

Problem

How would you use SQL window functions to calculate a 7-day rolling average of daily sales by store?

Practicing as: Data Scientist interview at PA Consulting

Hi, I'll play your PA Consulting interviewer for the Data Scientist role. Candidates describe these interviews as mostly positive and moderately difficult, so expect me to be friendly and conversational. Take your time with the question above and answer like we're in the room.

Take this as a live interview session →

You are practicing as a guest. Sign up free to get your answer graded with AI feedback. Your draft stays right here.

Sign up freeI have an account
Sign up to unlock solutions
Next questions
McDonald'sSQL Rolling Average with Window FunctionsMediumCVSSQL Rolling Average by StoreMediumCarvana7-Day Rolling Average with WindowsMedium