SQL fastest 'GROUP BY' script

Question

Is there any difference in how I edit the GROUP BY command?

my code:

SELECT Number, Id 
    FROM Table
    WHERE(....)
    GROUP BY Id, Number

is it faster if i edit it like this:

 SELECT Number, Id 
    FROM Table
    WHERE(....)
    GROUP BY Number , Id

Answer 1

it's better to use DISTINCT if you don't want to aggregate data. Otherwise, there is no difference between the two queries you provided, it'll produce the same query plan