Hi,

I need some help on how to calculate the freight charge on a package.

I have a table like this :

ID, WeightLimit, FreightRate, FuelRate
1,     1,         12,          1.2
2,      50,        1,         0.1
3,     99999,    0.5,         0.05

If I have a package weighing 2 kgs, then the total freight is calculated as:

1st kg = 12
2nd kg = 1
Total = 13

or if I had a package weighing 52 kgs:
1st kg = 12
next 49 kgs = 49 * 1 = 49
next 2kgs = 2 * 0.5 = 1
Total = 62

Is there a way to achieve this in SQL?