Select distinct records on a join

Question

I have two mysql tables - a sales table:

+----------------+------------------------------+------+-----+---------+-------+
| Field          | Type                    


        

Answer 1

We can use this:

INSERT INTO `test_table` (`id`, `name`) SELECT DISTINCT 
    a.`employee_id`,b.`first_name` FROM `employee_leave_details`as a INNER JOIN 
    `employee_register` as b ON a.`employee_id` = b.`employee_id`