Chat Activity

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

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

The community team is evaluating channel health and wants to know which chat channels are active and which are dead weight. For each channel, show the total number of messages, the number of unique senders, and the percentage of messages that have been edited. Round the edited percentage to one decimal place. Only include channels with at least five messages, sorted from most to fewest.

Summary

Which channels are ghost towns?

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