So how do yo find the most popular cake in the Shire Bakery? Here’s an idea.

-- Show the best cookie
-- See: Ben Forta Chap. 16
SELECT COUNT( cakes.cake ) AS 'popular', cakes.cake, costumers.who
FROM cakes, costumers, likes
-- sort out the cardinalities (relations)
WHERE cakes.cakes_id = likes.cakes_id
AND costumers.costumers_id = likes.costumers_id

-- group by the cake 
group by cakes.cake

-- and sort (most popular and downwards)
order by popular desc