Select distinct records on a join

Question

I have two mysql tables - a sales table:

+----------------+------------------------------+------+-----+---------+-------+
| Field          | Type                    


        

Answer 1

A DISTINCT should do what you're looking for:

SELECT DISTINCT items.ItemName, items.ItemId FROM items
JOIN sales ON items.ItemId = sales.ItemId 
WHERE sales.StoreID = ? ORDER BY sales.SaleWeek DESC;

That would return only distinct items.ItemName, items.ItemId tuples.