Insert values into single record

Using While Loop i want to insert the values into single record like thisEmpid empname D1 D2 D3...D301 asd 2Loop Executes second timeEmpid empname D1 D2 D3...D301 asd 2 2Loop Executes third timeEmpid empname D1 D2 D3...D301 asd 2 2 1Like this loop should update single record for the single employee... Thanks in advance