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Service User Growth Rate
A easy SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- mid
Problem
The SRE team is measuring service adoption momentum heading into the new year. For each service, calculate the growth rate of health check activity between December 2025 and January 2026, defined as January's check count divided by December's.
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.