API Calls With and Without Errors

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

Domain

SQL

Difficulty

medium

Seniority

L3

Problem

The API reliability team is triaging error rates across the platform. For each endpoint, they need a breakdown of how many calls completed cleanly versus how many produced an error message, along with the total call volume per endpoint.

Summary

Some calls succeed. Some do not. Break it down.

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