sql how to partition rank

1BY LOVE SINGH,
2Here, name and id is the column name of the table tbltest.
3
4SELECT
5	name,
6	RANK () OVER ( 
7		ORDER BY id DESC
8	) price_rank 
9FROM
10	tbltest;

1
2        
3            
4        
5     SELECT * FROM (
6	SELECT
7		product_id,
8		product_name,
9		brand_id,
10		list_price,
11		RANK () OVER ( 
12			PARTITION BY brand_id
13			ORDER BY list_price DESC
14		) price_rank 
15	FROM
16		production.products
17) t
18WHERE price_rank <= 3;