MySql查询结果按照指定顺序排序

时间:2021-05-11 06:54:10

MySql查询结果按照指定顺序排序  

2012-09-29 10:36:01|  分类: MySQL|字号 订阅


Mysql这功能做的很好用啊!!

 

让查询结果按照指定顺序排序

----------------------------------------------------------------------

表结构如下:
mysql> select * from test;
+----+-------+
| id | name  |
+----+-------+
|  1 | test1 |
|  2 | test2 |
|  3 | test3 |
|  4 | test4 |
|  5 | test5 |
+----+-------+

执行以下SQL:
mysql> select * from test where id in(3,1,5);
+----+-------+
| id | name  |
+----+-------+
|  1 | test1 |
|  3 | test3 |
|  5 | test5 |
+----+-------+
3 rows in set (0.00 sec)

这个select在mysql中得结果会自动按照id升序排列,
但是我想执行"select * from test where id in(3,1,5);"的结果按照in中得条件排序,即:3,1,5,想得到的结果如下:
id   name
3    test3
1    test1
5    test5


方法如下:
select * from test where id in(3,1,5) order by  find_in_set(id,'3,1,5');
select * from test where id in(3,1,5) order by substring_index('3,1,2',id,1);

  1. select * from a where a in(3,1,5) order by field(id,3,1,5)
转自:  http://www.csharpwin.com/dotnetspace/10119r6406.shtml