Open Wounds

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

Domain

SQL

Difficulty

hard

Seniority

L4

Problem

During an incident review, the on-call team needs the oldest unresolved alert for each service. Show the service name, alert ID, severity, status, and the time the alert was fired, by service name.

Summary

Every service has one alarm that was never silenced. Find the one that has been screaming the longest.

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and checks it automatically.