我不想在我的结果中重复行

i have two table.in that table i have t6wo column each.if two column and their values are same in both the table then how to do inner join between those table. my emp_code is primary key in another table and that table name is employee. and this emp_code is foreign key in actual_alldetails table and emp_time_tracking table. actual_alldetails table:-i have two table.in that table i have t6wo colu