how to get SUM from two different tables that are linked to third one

Question

ok the problem is that I have to sum two sums from two tables that are linked

first table points:

id | user_id | point | hit
1  | 1       |     4 | yes
2         


        

Answer 1

maybe something like:

select goals.user_id, sum(goal) as goal from
(select
  user_id, point as goal from points p where  (p.hit = "yes" OR p.hit = "no") 
union all
select
  user_id, earning as goal from earnings) goals
group by goals.user_id