在 MySQL 中選擇介於兩列值之間的特定值?
我們先建立一個表 -
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記錄 -
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 語句顯示錶中的所有記錄 -
mysql> select *from DemoTable787;
這將產生以下輸出 -
+--------+--------+--------+ | Score1 | Score2 | Name | +--------+--------+--------+ | 34 | 56 | Chris | | 73 | 86 | Robert | | 90 | 99 | David | | 80 | 89 | Adam | +--------+--------+--------+ 4 rows in set (0.00 sec)
以下是查詢介於兩列值的特定值 -
mysql> select Name from DemoTable787 where 56 between Score1 and Score2;
這將產生以下輸出 -
+-------+ | Name | +-------+ | Chris | +-------+ 1 row in set (0.00 sec)
廣告