Question

目前我有以下查询

SELECT * FROM tabs 
JOIN users d ON tabs.`debit` = d.id 
JOIN users c ON tabs.`credit` = c.id

因为表包含两个用户对象，所返回的名称是相同的：

id | amount | type | id | username | avatar | id | username | avatar

我需要它返回如下

 id | amount | type | debit.id | debit.username | debit.avatar | credit.id | credit.username | credit.avatar

或类似的东西，只要用户的列名称是前缀。

Answer 1

我认为这就是你要找的东西。试试看。（假设id | amount | type属于tabs表）

SELECT t.id,
t.amount,
t.type,
d.id as 'debit.id',
d.username as 'debit.username',
d.avatar as 'debit.avatar',
c.id as 'credit.id',
c.username as 'credit.username',
c.avatar as 'credit.avatar',
FROM tabs t
JOIN users d ON t.`debit` = d.id 
JOIN users c ON t.`credit` = c.id

来自同一个表的mysql多连接给出了别名

1 个答案: