First and Last Timeout Per Service

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

Domain

SQL

Difficulty

medium

Seniority

L3

Problem

Surface the first and last times each service experienced a connection timeout. Only look at error messages that mention 'timed out', and results should be ordered by service name.

Summary

First timeout. Last timeout. Each service.

Practice This Problem

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