Merging and Adding MySQL Rows?

Question

Here's an example of what's in my table:

id, domain, revenue, traffic
1, example.com, 0.01, 500
2, example.com, 0.01, 250
3, stackoverflow.com, 0.01, 400
4, example.com, 0.01, 350
5, stackoverflow.com, 0.01, 500

I basically want to select/merge rows based upon the domain column. For example, I'd want to output this from the above:

domain, revenue, traffic
example.com, 0.03, 1100
stackoverflow.com, 0.02, 900

Answer 1

something like this:

Select domain, sum(revenue),sum(traffic) from table group by domain;