插入一個參數到Where子句

Question

我有這個疑問，我想從數據排名對我的數據庫

set @urut:=0; 
set @rankhrg:=0; 
select @urut:=@urut+1 as urut, a.id_tender, b.nama_tender, b.nomor_tender, b.tgl_close1 as tgl_close, 
(SELECT rankhrg 
from (select sum(tot_harga) as hrg_twr, id_rekanan, id_tender, @rankhrg:=@rankhrg+1 as rankhrg from tb_real_barang where id_tender = s.id_tender group by id_rekanan) as rank_harga 
left join tb_master_tender s on s.id_tender = b.id_tender 
where rank_harga.id_rekanan = a.id_rekanan 
order by rank_harga.hrg_twr asc) as ranking 
             from tb_real_tender a 
             left join tb_master_tender b on a.id_tender = b.id_tender 
             where a.id_rekanan = 1 
             order by convert(a.id_tender,unsigned) desc 

我想通過id_tender進入選擇內選擇時，我想rankhrg：

select sum(tot_harga) as hrg_twr, id_rekanan, id_tender, 
     @rankhrg:=@rankhrg+1 as rankhrg 
from tb_real_barang 
where id_tender = s.id_tender 
group by id_rekanan 

但我總是得到錯誤，說s.id_tender在where子句中是未知的。

有人可以指導我如何將參數傳遞到該插入？ 謝謝:)

Answer 1

您未加入該表tb_master_tender並且它不存在於外部查詢FROM子句中。所以，你需要像下面

select sum(trb.tot_harga) as hrg_twr, 
trb.id_rekanan, 
trb.id_tender, 
@rankhrg:=@rankhrg+1 as rankhrg 
from tb_real_barang trb 
left join tb_master_tender s on trb.id_tender = s.id_tender 
group by trb.id_rekanan