在 MySQL 中,在两个列值之间选择一个特定值?

mysqlmysqli database更新于 2025/11/14 22:04:17

首先我们创建一个表 −

mysql> create table DemoTable787 (
   Score1 int,
   Score2 int,
   Name varchar(100)
);
Query OK, 0 rows affected (0.84 sec)

使用 insert 命令在表中插入一些记录 −

mysql> insert into DemoTable787 values(34,56,'Chris');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable787 values(73,86,'Robert');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable787 values(90,99,'David');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable787 values(80,89,'Adam');
Query OK, 1 row affected (0.21 sec)

使用 select 语句显示表中的所有记录 −

mysql> select *from DemoTable787;

这将产生以下输出 -

+--------+--------+--------+
| Score1 | Score2 | Name   |
+--------+--------+--------+
| 34     | 56     | Chris  |
| 73     | 86     | Robert |
| 90     | 99     | David  |
| 80     | 89     | Adam   |
+--------+--------+--------+
4 rows in set (0.00 sec)

以下是在两列值之间选择特定值的查询 −

mysql> select Name from DemoTable787 where 56 between Score1 and Score2;

这将产生以下输出 -

+-------+
| Name  |
+-------+
| Chris |
+-------+
1 row in set (0.00 sec)

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