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Most Active Chat Users
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid
Problem
Rank all chat users by total message volume so that tied counts share the same rank with no gaps. Show each user's rank, ID, and total messages, from most to least active.
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.