Where in the World Are Our Customers?

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

The go-to-market team keeps insisting the customer base is concentrated in a single country, and we want the real spread before the next planning cycle. Break the customers down by country and give each country's percentage of the whole, biggest share first.

Summary

One country dominates the logo wall. Or does it?

Practice This Problem

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