SQL QuestSQL Interview Questions › Aggregation & Grouping

Genre Financial Report

MediumFreeQuerying BasicsAggregation & GroupingConditional Logic

For genres with at least 5 movies, show exactly these 6 columns, in this order: genre, movie_count, avg_rating (2 dec), total_revenue (excluding NULLs, 1 dec), avg_revenue_per_film (1 dec), revenue_missing (count of films with no revenue data). Sort by total_revenue descending.

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Schema

movies

idtitleyeargenreratingvotesrevenue_millionsruntimedirector
1Guardians of the Galaxy2014Action8.1757074333.13121James Gunn
2Prometheus2012Adventure7485820126.46124Ridley Scott
3Split2016Horror7.3157606138.12117M. Night Shyamalan

Expected output: Genres with 5+ films and full financial stats

Hint

SUM(CASE WHEN revenue_millions IS NULL THEN 1 ELSE 0 END) counts missing revenues. SUM/AVG of revenue_millions automatically excludes NULLs

Concepts

SELECT GROUP BY HAVING Aggregation CASE

Practise the topic: SQL practice questions · GROUP BY exercises · CASE WHEN practice

In these company practice sets

Snowflake · Spotify

A SQL Quest challenge matched to patterns reported for these companies — not a question any of them has published.

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