Users With Purchase Events

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

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

Return all user IDs for users who have triggered at least one purchase event, by user ID.

Summary

At least one purchase. That changes everything.

Practice This Problem

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