How to remove duplicates in table chart

[Anonymous]

Hi Community,

Here i shared my table chart.. here i am getting duplicate Item descriptions because their id's are different. now what i want is if same item description is present in multiple times i want to show end date presented item description. i am not able to get how to achieve this... Some of item descriptions doesn't have end date at that time i want to show latest start date item description. whenever end date will come it will show start and end date presented item description

Please help me out from this

Thank you in advance

B V S S