將MySQL查詢轉換爲Codeigniter語法

Question

我有一些問題將MYSQL查詢轉換爲CI語法。

這是我的MySQL語法：

select a.pbj_name as 'NAMA PERUSAHAAN', count(a.id_pbj) as 'JUMLAH PAKET', group_concat(c.paket_kode) as 'PILIHAN PAKET' 
from jed_pbj a 
left join jed_paket_pbj b 
     on a.id_pbj=b.id_pbj 
left join jed_paket c 
     on b.id_paket=c.id_paket 
group by a.id_pbj 

Answer 1

查覈在笨這Active Record類，

$this->db->select("a.pbj_name as 'NAMA PERUSAHAAN', count(a.id_pbj) as 'JUMLAH PAKET', group_concat(c.paket_kode) as 'PILIHAN PAKET'"); 
$this->db->from('jed_pbj a'); 
$this->db->join('jed_paket_pbj b', 'a.id_pbj=b.id_pbj', 'left'); 
$this->db->join('jed_paket c', 'b.id_paket=c.id_paket', 'left'); 
$this->db->group_by("a.id_pbj"); 
$this->db->get();