Question

I have a cart table which has a relation to a product table that i am using to save user’s cart details to db. But i have a problem how can i save quantity of products?

I mean something like 2x of 298 (which is a id of a product)?

Answer 1

product_to_cart

+---------+------------+-----+
| cart_id | product_id | qty |
+---------+------------+-----+
| x       | x          | x   |

...

With a compound primary key comprising cart_id and product_id ?