Hi.
Is there any one command (In aGrid or perhaps a SQL option) which will show an accumulating balance .

e.g. as follows:

Cust Invoice Amt Cumulative
001 100.00 100.00
023 300.00 400.00
022 800.00 1200.00

Above would be displayed in a Grid.
I know I could write a piece of code to populate the third column but was wondering if anybody had come up with some other one line/command variation ?

Regards,

Gerard