so here is my table structure, see image, 2 tables called order_header and order_lines
order_lines foreign key is order_number and order_header's primary key is order_number, it is a one to many relationship between order_header and order_lines
I need to get the result table based off of the following information
order_interval = 3 and item_code of 'burger' is not present within any order_number record.
So you can see by the result, only order_number's of 345 and 342 have a order_interval of 3 but order_number 342 does have a line item with 'burger' in it so it should not be returned, order_number 345 does not have a line item with 'burger' in it so it is returned
This is for a oracle database, what would be the sql to use