0 - 2 of 2 tags for work table

Hi Experts,
say the data in the source file consists of 100 records with empno ranging from 100-200.  If I hardcode the update operation with a where clause =100 in DML label (which should update only 1 row in target), will the work table be loaded with 1 row or from rows 100-200?

I need help with this issue.