Cheapest Transaction per User

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 pricing team is looking at each user's lowest-value purchase to understand the floor of what people are willing to spend. Show the user ID, username, and their smallest transaction amount, from the lowest up.

Summary

Everyone has a smallest purchase.

Practice This Problem

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