Most Frequent Error Types

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

Domain

SQL

Difficulty

medium

Seniority

L3

Problem

During an incident postmortem, on-call wants the error types showing up most often in the tracking table. Give the number of logged reports for each error type, from the most to the fewest.

Summary

The errors that keep coming back.

Practice This Problem

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