Devices Per Age Bucket

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

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

For active users in the 25-34 age bucket, the product team wants to know which device types they use most. Count the number of unique devices broken down by device type, from most to fewest.

Summary

Device diversity among the younger users.

Practice This Problem

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