Running calculation on the global variable

Question

Hello All,
I'm facing some requirement with OBIEE answers. I'll try to explain.
I have following table:
Name,    Amount,
Beer,     1500,     
Car,       2400
Laptop,  2000
During the draw above table, there is one calculation work on Amount field. For example:
if(Amount < 1500 )
     GLOBAL_VARIABLE = GLOBAL_VARIABLE + 1;
if else (Amount >= 1500 and Amount < 2000)
     GLOBAL_VARIABLE = GLOBAL_VARIABLE + 2;
if else (Amount >= 2000 and Amount < 2400)
     GLOBAL_VARIABLE = GLOBAL_VARIABLE + 3;
else
     GLOBAL_VARIABLE = GLOBAL_VARIABLE + 4; etc...
After we need to show GLOBAL_VARIABLE on the analysis.
BR,
Eba

Answer 1

case when Amount < 1500 then
     GLOBAL_VARIABLE + 1
when Amount >= 1500 and Amount < 2000
then     GLOBAL_VARIABLE + 2
when Amount >= 2000 and Amount < 2400
then     GLOBAL_VARIABLE + 3
else
     GLOBAL_VARIABLE + 4
end
other way also can do
GLOBAL_VARIABLE+ case statement and just 1, 2, 3. instead of adding to GLOBAL_VARIABLE