Months in Motion

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

Domain

SQL

Difficulty

medium

Seniority

L3

Problem

We're reading the seasonal rhythm of the business by counting engagement one calendar month at a time, across our full history and limited to transactions worth at least $5. For each month, find how many unique buyers there were and how many transactions happened in total.

Summary

Engagement, counted one month at a time.

Practice This Problem

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