Services Hitting Cost Threshold

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

Domain

SQL

Difficulty

hard

Seniority

mid

Problem

For each month, calculate what percentage of services reached at least $100 in monthly cloud spend. Exclude rows where bill_date is null (cancelled billing entries). Return the month and percentage hitting the threshold.

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.