helloo....guys need a favour from you....okay this is the scenario
i have a attribute called document_no,
now i would like to append running numbers behind it to fill in a new attribute
eg:
document_no = 123222
serial_no = 12322201
12322202
12322203
now the number starts from 01 and go on up to 64(according to the pallet no.)
any idea how to do this...because not that i append...the '0' goes missing and its 1232221
thank you...