The Fault Lines

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

Domain

SQL

Difficulty

medium

Seniority

L5

Problem

To see which account groups have the roughest time in the product, find each account status's share of events that ended badly, worst first. Treat an event as bad when its type is error, timeout, or crash.

Summary

Some account groups hit far more errors than others. Surface the ones that break most.

Practice This Problem

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