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Alert Count by Severity Tier

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

Domain
SQL
Difficulty
medium
Seniority
junior, mid

Problem

The incident response team needs alert volume broken down by severity tier for the postmortem review. If a severity value is missing, label it as 'unknown'. Present the tiers from most alerts to fewest.

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.