Many Eyes

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

We're mapping how review attention spread across each codebase year over year. For every repo in a given year, find how many different people reviewed its code, and surface the pairings with the most reviewers first.

Summary

Every codebase draws its own circle of watchers. Count who shows up.

Practice This Problem

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