Update table record to another table

Hi guys, need some help anyone can help suggest me how to update record from 1 table to another table ?

basically i got 1 modal where user can add user as approver and it can be set to approver 1 or approver 2, approver 1 will go to the first table and approver 2 will go to the second table.

any idea i can make the table can update itself if lets say i want to change the approver from level 1 to level 2 … other than i refresh the page manually