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Resolved vs Unresolved Alerts
A hard SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- junior, mid
Problem
For each alert severity level, show how many alerts are resolved versus unresolved as separate columns. Treat missing resolution status as unresolved.
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.