Low-Volume Stream Topics

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

Domain

SQL

Difficulty

medium

Seniority

junior

Problem

The streaming platform has some low-traffic topics that might be candidates for compaction. Find topics with fewer than 11 messages, showing the topic and its message count.

Practice This Problem

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