如何在MySQL中按任意关键字排序?
为此,请使用ORDER BY FIELD()ASC。 让我们先创建一个表−
mysql> create table DemoTable(Title varchar(100));
Query OK, 0 rows affected (0.56 sec)
使用插入命令在表中插入一些记录 −
mysql> insert into DemoTable values('Java');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable values('C');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('Python');
Query OK, 1 row affected (0.63 sec)
mysql> insert into DemoTable values('MongoDB');
Query OK, 1 row affected (0.20 sec)
使用select语句显示表中的所有记录 −
mysql> select *from DemoTable;
这将产生以下输出−
+---------+
| Title |
+---------+
| Java |
| C |
| Python |
| MongoDB |
+---------+
4 rows in set (0.00 sec)
以下是按任意关键字排序的查询−
mysql> select *from DemoTable order by FIELD(Title,'MongoDB,C,Python,Java') ASC;
这将产生以下输出−
+---------+
| Title |
+---------+
| Java |
| C |
| Python |
| MongoDB |
+---------+
4 rows in set (0.00 sec)
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