Please help me understand your problem. Which of these descriptions is correct for you need?
a. replace the data in the table in work area 6?
b. add new records to the table in work area 11?
c. something else?
>i have student record, (daily sutdent attendence)
>i save for absent student="A" or which student have leave"L"
>"A" and"L" student no are not more so i replace the A and L first. then"P" for all present student, but now i have problem if a "A" is already taken for any student. in my codes this student has also presence. now a student is present and absent.