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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
- senior
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.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a live PostgreSQL database and grades it instantly.