根据给定条件选择两个不同的列最大值

Question

我想选择两个不同的列最大值

1. 第一个是插入行的最大数量

2. 第二个是用户基础（我正在使用where子句I。

没有where子句，我有

__________________________此代码正在工作_____________________

SELECT 
  (max(msg_sub_id)) as max_sub_id,
  (select max(`msg_id`) from message) as max_id 
 FROM `message` 
 WHERE `receiver_id` = 'sineter'

---------------------此代码不起作用------------------------ -

insert into (`msg_id`,`msg_sub_id`,`sender_id`,`receiver_id`,`msg`) 
  (SELECT (select max(`msg_id`) from message), 
    (select max(msg_sub_id) 
      FROM `message` WHERE `receiver_id` = 'sineter'), 
  'none', 'sineter', 'max-max message' )

Answer 1

您缺少表格名称：

insert into `table_name` (`msg_id`,`msg_sub_id`,`sender_id`,`receiver_id`,`msg`) (SELECT (select max(`msg_id`) from message), (select max(msg_sub_id) FROM `message` WHERE `receiver_id` = 'sineter'), 'none', 'sineter', 'max-max message' )
             ^^^