PARTITION BY

PARTITION BY divides rows into groups for calculation:

SELECT 
    name, 
    category, 
    price,
    AVG(price) OVER(PARTITION BY category) as category_avg
FROM products;

This calculates the average within each category, while keeping all rows.

Your Task

For each product, show:

• name, category, price

• The average price within its category (as category_avg)

  Order by category, then price descending.