SQL Quest › SQL Interview Questions › Aggregation & Grouping
Genre Financial Report
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
| id | title | year | genre | rating | votes | revenue_millions | runtime | director |
|---|---|---|---|---|---|---|---|---|
| 1 | Guardians of the Galaxy | 2014 | Action | 8.1 | 757074 | 333.13 | 121 | James Gunn |
| 2 | Prometheus | 2012 | Adventure | 7 | 485820 | 126.46 | 124 | Ridley Scott |
| 3 | Split | 2016 | Horror | 7.3 | 157606 | 138.12 | 117 | M. Night Shyamalan |
Expected output: Genres with 5+ films and full financial stats
Hint
Concepts
SELECT GROUP BY HAVING Aggregation CASE
Practise the topic: SQL practice questions · GROUP BY exercises · CASE WHEN practice
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