Loading...
Most Profitable Region Month
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid, senior
Problem
The finance team needs the single most profitable region-month combination in 2026. For each region, sum profit by transaction month, matching orders to transactions by their ID modulo 100. Return whichever region and month came out on top.
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.