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Successful Build Duration by Repository
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid
Problem
For each repository, sum the total duration of successful builds in January 2026. Repositories with no successful builds should still appear with a total of zero. Return the repository name and total duration in seconds.
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.