From products, return category, COUNT(*) AS total, and SUM(CASE WHEN rating >= 4 THEN 1 ELSE 0 END)

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

Domain

SQL

Difficulty

medium

Problem

From products, return category, COUNT(*) AS total, and SUM(CASE WHEN rating >= 4 THEN 1 ELSE 0 END) AS highly_rated. Order by category.

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