Tampilkan hari atau tanggal sebagai kolom di mysql

Coba ini

SELECT e.struk_no,
IF(DATE(e.created_at)= str_to_date("2016-11-13","%Y-%m-%d"),1,0) as '13'
IF(DATE(e.created_at)= str_to_date("2016-11-14","%Y-%m-%d"),1,0) as '14',
IF(DATE(e.created_at)= str_to_date("2016-11-15","%Y-%m-%d"),1,0) as '15',
c.id,
count(a.harga_jual) as counting,
sum(a.harga_jual) AS total_item
                                    FROM transaction_detail a ............

Semoga berhasil..