InfoPath Dev

URGENTLY HELP SOUGHT!!! I have an infopath form and I want to display top 3 values from secondary data source in a repeating table. I will select a name from drop down and it should display only top 3 rows and not all from database on infopath repeating table out of many in database. How can it be done.

Hi, I have a repeating table that is bound to a sharepoint list. I want to limit the number of rows retrieved in repeating table to 3 for the user name selected in drop down (also bound to sharepoint list column). Please help... its urgent.