Question

SELECT * FROM menu WHERE item_id = 1 OR item_id = 2 OR item_id = 3;

The above statement returns 3 rows.
But the statement below only returns 2 rows.

SELECT * FROM menu WHERE item_id = 1 OR item_id = 1 OR item_id = 2;

And I understand why like, but is there a way to force item_id 1 to be returned twice???

Example of what I want to be returned:

id -> 1 Chips €2.50
id -> 1 Chips €2.50
id -> 2 Coke €1.60
——————–
Total €6.60

Answer 1

You could join on another table, for example

SELECT * FROM menu
INNER JOIN order_items ON menu.item_id = order_items.item_id
WHERE order_id = 123;

Or just duplicate them in your application.

You shouldn’t really need to do what you’re asking for.