Authors With Successful Deploys

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

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

The release team needs a list of every engineer who has landed at least one successful deployment. Return a deduplicated list of authors, excluding records where the author field is empty.

Summary

Who deployed successfully?

Practice This Problem

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