Compute this-year spend share of last-year whales

Q: How do I practice SQL interview questions?

PracHub provides an interactive SQL console where you can write and test queries against real database schemas. Get instant feedback and compare your solution with the expected output.

Q: What difficulty level is this coding question?

This is a easy difficulty Data Manipulation (SQL/Python) question, commonly asked during Onsite rounds at Meta.

Q: What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Meta during technical interviews.

Question

Compute this-year spend share of last-year whales

PracHub · Accepted Answer

This question evaluates proficiency in data manipulation and analytics engineering, specifically SQL and Python skills for aggregations, joins, calendar-year time filtering, cohort identification, exclusion logic, and monthly rollups of ad spend.

Quick Overview

Compute this-year spend share of last-year whales