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

Domain

SQL

Difficulty

medium

Problem

The DevOps lead is presenting build reliability at the all-hands and needs a failure percentage per repository. For each repo, what share of its CI builds ended in a 'failed' status?

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 grades it automatically.