join two tables on Column where column has value specified more than once

I have two tables with below datatable 1Id name company1 aaa yyy1 aaa bbbtable 2Id designation1 manager1 managerWhen I join these on ID, I get 4 rows but instead I want to get two rows.target table:Id name company designation1 aaa bbb manager1 aaa yyy managerhow can I get this ?In the example company is changed. It can remain same or it can be different.