Top 2 Active Push Days

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

Domain

SQL

Difficulty

medium

Seniority

L3

Problem

During a push notification window from August 1 to 7, which two days saw the most unique users receiving a notification? Show the day of week number (0=Sunday through 6=Saturday), date, and unique user count.

Summary

Two days stood out from the rest. Which ones?

Practice This Problem

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