YoY Signup Growth Rate

A hard SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

hard

Seniority

L5

Problem

For each year, count signups and compute the year-over-year growth rate as a percentage compared to the prior year. Round to the nearest whole number and return results by year ascending.

Summary

This year versus last year. Growing or shrinking?

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.