I've a small requirement; Actually I've a table which has three column name such as ID, Product_Name and Product_Quantity, these columns contains value like:
ID Product_Name Product_Quantity
1 Parle G 10
2 Hair Oil 20
3 Soap 30
4 Shampoo 49
In this table I want to add another column name like Product_CumulativeValue which contains cumulative value of Product_Quantity column, so can you tell me how to find out the cumulative value of Product_Quantity column.
Please resolve my problem as soon as possible.
Thanks in advance!