replace ADD in the statement

hi guru,

this is very urgent ..suitable ans will be rewarded..

i have

select-option: period type rfsdo-allgbmon with no intervals.

select * from knc1 ....into corresponding fields of int.

ADD int-um01s THEN int-um02s UNTIL int-um16s

GIVING lv_var ACCORDING TO period.

....

now i need to replace this ADD statement as it is obselete..

reply's will be rewarded.

babu