Find usernames where EXISTS a transaction for that user with quantity >= 5

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

Domain

SQL

Difficulty

medium

Problem

Find usernames where EXISTS a transaction for that user with quantity >= 5. Return user_id and username. Order by user_id.

Practice This Problem

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