SQL JOIN problem

Question

Hello,
To output data on my .php website I use a SQL database. One
particular page needs information from 3 tables:
1. Product (product.id, product.name)
2. Partner (partner.productid, parner.shopname)
3. Shop (shop.shopshopname)
I currently have this code running to make it happend:
SELECT *
FROM (product LEFT JOIN partner ON product.id =
partner.productid) LEFT JOIN shop ON partner.shopnaam =
shop.shopshopnaam
WHERE product.categorie = 'Kinderwagens' AND
product.hoofdmodel = '1'
ORDER BY product.name ASC, shop.shopcpc DESC
The idea is that every product.name gets outputted in a list
just once and that it picks partner.productid of the row with the
highest corresponding shop.cpc.
Example: I have a lot of product.id's where product.id =
"1000 is found 4 times in partner.productid. All product.name's are
outputted and ascend correctly. However, product.name with
product.id=1000 is outputted 4 times. I only want it outputted once
where it pickes the corresponding partner.id where its
corresponding shop.shopcpc is highest. What do I do to prevent it
from outputting all 4?
I know its kind of complex to explain, if there are questions
please let me know.

Answer 1

I kind of fixed this problem with a group by:
SELECT *
FROM (product LEFT JOIN partner ON product.id =
partner.productid) LEFT JOIN shop ON partner.shopnaam =
shop.shopshopnaam
WHERE product.categorie = 'Kinderwagens' AND
product.hoofdmodel = '1'
GROUP BY product.naam
ORDER BY product.naam ASC, shop.shopcpc DESC
However, by doing this my ORDER BY shop.shopcpc doesnt work
anymore. Anyone know how to fix this?