Latency Quartiles Per Endpoint

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

Domain

SQL

Difficulty

hard

Seniority

L4

Problem

For the API performance review, divide each endpoint's calls into four equal-sized buckets by latency, then for each endpoint-bucket pair show the minimum latency, maximum latency, and average latency. Results should appear ordered by endpoint name, then by bucket number.

Summary

Quartile breakdowns. Endpoint by endpoint.

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