iOS Adoption by 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

Compare the count of iOS users (running iOS 16, 17, or 18) to total users in each age bucket, but only buckets where at least one session exists. Return results by total users, highest first.

Summary

The install numbers don't match the hype.

Practice This Problem

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