Question

I have two tables with same column name I have to add the oprId column values for some specific condition on both tables.

Table 1

something  oprId

abc          1
qwe          2

Table 2

something  oprId

abc          2
qwe          5 

Result should be

oprId
3
7

Answer 1

declare @T1 table (something varchar(3), oprId int)
declare @T2 table (something varchar(3), oprId int)

insert into @T1 values ('abc', 1),('qwe', 2)
insert into @T2 values ('abc', 2),('qwe', 5)

select T1.oprId+T2.oprId as oprId
from @T1 as T1
  inner join @T2 as T2
    on T1.something = T2.something

Result:

oprId
------
3
7