Remove multiple records for one field in alv

I have an ALV report that displays Start date based on employee number like

emp num | start date | end date|

1 |12.10.1995|20.12.2020|

|05.10.1995|10.12.1998|

2 |12.12.2020|11.10.2020|

3 |......

For emp num 1 I have two records , of which I need to display only the latest start date I have to make one record per one field. Can anyone help me how can I do that?