Competing Standards

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

Domain

SQL

Difficulty

hard

Seniority

L5

Problem

For each model (`mdl_name`), find the framework used across the greatest number of its versions, breaking a tie in that count by the higher average accuracy. Sort the resulting model-framework pairs by average accuracy, highest first, and keep every pair whose accuracy places it among the three highest values, including any that share a position.

Summary

Every framework has a star model.

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