The Weak Link

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

The platform team is reviewing CI reliability and wants to know which repositories break the most. For each repository, return the percentage of its builds that ended in a 'failed' status, rounded to two decimals and worst first, breaking any ties by repository name.

Summary

Build failures happen. Which repos break the most?

Practice This Problem

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