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

Domain

SQL

Difficulty

medium

Problem

The platform team is preparing a CI health report for the engineering all-hands. For each repository, show the number of builds that finished successfully, the number that failed, and the success rate as a percentage of all builds. Only include repositories that have run at least three builds total , anything with fewer runs isn't meaningful. Present from highest success rate to lowest.

Summary

Repos that break more than they ship.

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.