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MySQL查询在数字列中显示ASC顺序？

2024-04-30 00:57:03 351

您可以借助CAST()方法来实现。让我们首先创建一个表-

mysql> create table DemoTable
   (
   Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   Score int
   );
Query OK, 0 rows affected (0.72 sec)

使用插入命令在表中插入一些记录-

mysql> insert into DemoTable(Score) values(10);
Query OK, 1 row affected (0.19 sec)

mysql> insert into DemoTable(Score) values(100);
Query OK, 1 row affected (0.14 sec)

mysql> insert into DemoTable(Score) values(11);
Query OK, 1 row affected (0.13 sec)

mysql> insert into DemoTable(Score) values(97);
Query OK, 1 row affected (0.14 sec)

mysql> insert into DemoTable(Score) values(78);
Query OK, 1 row affected (0.13 sec)

mysql> insert into DemoTable(Score) values(89);
Query OK, 1 row affected (0.18 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-

+----+-------+
| Id | Score |
+----+-------+
| 1  | 10    |
| 2  | 100   |
| 3  | 11    |
| 4  | 97    |
| 5  | 78    |
| 6  | 89    |
+----+-------+
6 rows in set (0.00 sec)

以下是在数字列中设置ASC顺序的查询-

mysql> select *from DemoTable order by cast(Score AS SIGNED INTEGER) ASC;

这将产生以下输出-

+----+-------+
| Id | Score |
+----+-------+
| 1  | 10    |
| 3  | 11    |
| 5  | 78    |
| 6  | 89    |
| 4  | 97    |
| 2  | 100   |
+----+-------+
6 rows in set (0.00 sec)

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MySQL查询在数字列中显示ASC顺序？

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