連接多個表

Question

我有2個表，在table1我有列user_d和user_i，下一個代碼，只返回user_d的名稱。

SELECT table1.*, table2.name as nameuser FROM table1 INNER JOIN 
table2 ON table1.user_d=table2.id where table1.id=1 

如何爲表1 user_i列返回用戶名呢？

Answer 1

嘗試這個

select distinct(tickets.id),(select name from users where user_d=id) as user_d, 
(select name from users where user_i=id) as user_i from tickets INNER JOIN 
users ON tickets.user_d=users.id order by tickets.id asc 

此代碼爲您

Answer 2

Table 1-Tickets 
ID|Ticket|USER_D|User_I 
1|4234|3|2 
2|4553|1|5 
3|4335|4|3 

Table 2- Users 
ID|Name 
1|John 
2|Cris 
3|Ely 
4|David 
5|Denis 

我需要USER_D和USER_I