hi i have a table like this for attendence:
table name attendence. id std_rolNum std_fname date std_bkfast std_lunch std_dinner
i want to make search on the base of
so that if on the same date if student have already taken breakfast, lunch or dinner he couldn't mark attendence.
so i have to select multiple columns like date and roll_number.
but i couldn't implement my logic in to c#....