MySql Query对行进行求和并获得最大值

Question

I have a table product with sample data as below

product  1   2  2   3   1          
Quantity 10 15  20  10  5 

I need to findout which product has highest quantity after summing up all the available quantity for all the products

Example: Here answer would be 15+20 = 35 is greatest so product 2 has more quantity

please help with query

Answer 1

select product, sum(quantity) as sum_quantity
from products
group by product
order by sum_quantity desc
limit 1