SQL query with distinct and sum

Question

I have the following medleys table that combines colors, fruits and ratings:

[medleys]
medley_id   |   co         


        

Answer 1

SELECT color, fruit, sum(rating)
FROM medleys
GROUP BY color, fruit

Distinct is used to select distinct elements, nothing more, while you want to aggregate and for that you need GROUP BY and aggregation functions (SUM).

Answer 2

SELECT `color`,`fruit`,SUM(`rating`)
FROM Medleys
GROUP BY `color`,`fruit`

SQL Fiddle Example

Answer 3

This should answer your question:

SELECT color, fruit, sum(rating) as [sum]
FROM medleys
GROUP BY color, fruit
ORDER BY color

Answer 4

You don't need distinct at all. You need group by:

select color, fruit, sum(rating)
from medleys
group by color, fruit

I'm answering, because I see this mistake occur. In general, you don't need select distinct at all in SQL. You can always use a group by instead. Distinct should be introduced after group by as a convenient short-hand.