Question

MySQL是否可以按顺序对两列进行排序？请参阅我的示例查询

<?php
 $qResults  =  mysql_query("SELECT column1, column2 FROM tablename ORDER BY column1 ASC, column2");

//The initial data is these

Column 1       Column 2
   7              24
   18              3
   2              25
   9              23
   17              8 
   1              15
   10             19
   20              4
   11              6
   16              5

//I want to sort it by this.
Column 1       Column 2
   1              15
   2              25
   18             3
   20             4
   16             5
   11             6
   7              24
   17             8
   9              23
   10             19

?><br>

按升序排序两列。这可能在mysql查询中吗？

Answer 1

我终于得到了你想要的东西：

SELECT *
FROM torder
order by least(col1, col2), greatest(col1, col2)

Answer 2

试试这个

$qResults  =  mysql_query("SELECT column1, column2 FROM tablename ORDER BY column1 ASC, column2 ASC");

它将对column1进行排序，然后对column1

中的column2进行排序

Answer 3

你可以试试这个：

$qResults  =  mysql_query("SELECT column1, column2 FROM tablename ORDER BY column1 ASC, column2 ASC");

参见： http://dev.mysql.com/doc/refman/5.0/en/order-by-optimization.html

订购两列升序php mysql排序

3 个答案: