Hi,

Thank a lot for your help. Here are my data structure

emp_id C(4)
emp_name C(30)
date D
in_time T
out_time T
lateness C(4)
overtime C(4)

Example data
emp_id date in_time out_time lateness overtime
200001 01/10/98 01/10/98 08:00 02/10/98 01:00 0200 0100

I am just doing my colleagues a favour and the table structure is not created by me.

Thank in advance for your help