Question

我有一个mysql语句：

SELECT userid,username FROM table1 ORDER BY userid DESC LIMIT 15

我想要做的是从表中获取最后15个，但是也按字母顺序对用户名进行排序以便输出。

这样做的语法是什么？

Answer 1

您可以像这样使用subquery： -

select userid, username
from 
(
  SELECT userid,username FROM table1 ORDER BY userid DESC LIMIT 15
) as last_15
order by username;

Answer 2

这样的事情怎么样：

SELECT username，userid FROM table1 WHERE userid IN（SELECT userid FROM table1 ORDER BY userid DESC LIMIT 15）ORDER BY username ASC

Answer 3

您可以将原始SELECT换成新的

SELECT userid,username FROM (
    SELECT userid,username FROM table1 ORDER BY userid DESC LIMIT 15
) ORDER BY username ASC

或者由于数据非常简单，您可以将原始结果加载到PHP中的数组中并对数组进行排序。

Answer 4

你可以尝试这个

SELECT userid,username FROM table1 ORDER BY username ASC LIMIT 15,0

Answer 5

select  last_15.userid,  last_15.username
from 
(
  SELECT userid,username FROM table1 ORDER BY userid DESC LIMIT 15
) as last_15
order by last_15.username;

此查询甚至可以快速运行

mysql按字母排序输出但得到ASC？

5 个答案: