使用where子句選擇多列查詢進行查看？

Question

如何從顯示錶中獲取顯示ID和名稱。在哪裏顯示ID選擇使用where子句，直到現在我只選擇顯示ID，但現在我想從同一個表中選擇名稱。

舊桌子是這樣的。

SELECT id, 
     (SELECT displayid 
     FROM quickpay12.q_sponsortrack AS Q_SponsorTrack_1 
     WHERE (f1.transferto = f1.id)) AS TransferTo, 
     (SELECT displayid 
     FROM quickpay12.q_sponsortrack AS Q_SponsorTrack 
     WHERE (f1.transferby = f1.id)) AS TransferBy, 
     descid, 
     credit, 
     debit, 
     description, 
     vdate, 
     balance, 
     wallettype, 
     sno 
FROM quickpay12.f_transactionsummary_employee AS f1 

Answer 1

嘗試下面的查詢從所有表返回所有列：

SELECT f1.* , 
     Q_SponsorTrack_1.* , 
     Q_SponsorTrack.* 
FROM quickpay12.f_transactionsummary_employee AS f1 
     LEFT JOIN quickpay12.q_sponsortrack AS Q_SponsorTrack_1 ON f1.transferto = Q_SponsorTrack_1.id 
     LEFT JOIN quickpay12.q_sponsortrack AS Q_SponsorTrack ON f1.transferby = Q_SponsorTrack.id