SQL: Accumulative columns & Sum Across the Row

Question

I have a table and its record:

Profile | Level | CHgt | BHgt | SHgt | Z
ABCD1   | 1     | 15   | 11   | 50   | 0
ABCD1   | 2     | 15   | 11   | 70   | 0
ABCD1   | 3          


        

Answer 1

This would be easier in more recent versions of SQL Server. But you can do this using apply:

select t.*, t2.Bhgt2,
       (case when level = 0 then 0 else SHgt2 end) as Shgt2,
       (CHgt + t2.Bhgt2 + (case when level = 0 then 0 else SHgt2 end) ) as Z
from t cross apply
     (select sum(Bhgt) as Bhgt2,
             sum(SHgt) as SHgt2
      from t t2
      where t2.profile = t.profile and t2.level <= t.level 
     ) t2;