mysql - 即使第二个表上的行不存在也右连接

Question

我想加入两个表，即使第二个表没有匹配项。

表用户:

uid | name
1     dude1
2     dude2

表帐户:

uid | accountid | name
1     1           account1

我想要的 table :

uid  | username | accountname
1      dude1      account1
2      dude2      NULL

我正在尝试的查询:

SELECT user.uid as uid, user.name as username, account.name as accountname
FROM user RIGHT JOIN account ON user.uid=accout.uid

我得到了什么:

uid  | username | accountname
1      dude1      account1

Answer 1

改用左连接

SELECT user.uid as uid, user.name as username, account.name as accountname
FROM user LEFT JOIN account ON user.uid=accountid.uid