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Sliding Window Max Revenue
For each movie, calculate the maximum revenue within a sliding window of 3 movies (1 before, current, 1 after) ordered by year then title. Show title, year, revenue_millions, and window_max_revenue (the highest revenue in the 3-movie window). Exclude movies with null revenue. Sort by year, title. Sliding window MAX/MIN with explicit frame boundaries is a harder variant of rolling averages, tested at Netflix and Amazon.
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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: window_max for middle = $300M (max of 100,300,200)
Hint
Concepts
SELECT Window Functions MAX Frame Clause
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