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The Revenue Cliff
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
Pull a monthly revenue trend showing the month-over-month percentage change. Flag any month where revenue dropped more than 10% from the previous month. Round to 2 decimal places.
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.