Clear 2 records without disturbing the sum

Hey Folks,

I have a requiremnet where i have a table

itab

field1 field2 field3 field4

12 45 60 57

23 56 78 90

-

35 101 138 147

I need the table t be modified like this

itab

field1 field2 field3 field4

0 0 0 0

0 0 0 0

-

35 101 138 147

I need to clear the 2 records without disturbing the sum.

how wud i achieve this.

thanks in advance.

Regards

Rock

Edited by: Alvaro Tejada Galindo on Feb 7, 2008 9:22 AM