Top Two Orders per Customer

Return the two largest orders of every customer (id, customer_id, amount) ordered by customer_id then amount descending.

Table schema

Orders(id INT PRIMARY KEY, customer_id INT, amount INT)

Sample data

id | customer_id | amount
1 | 1 | 100
2 | 1 | 50
3 | 1 | 70
4 | 2 | 30