可以使用BETWEEN子句來代替組合“大於等於小於等於”條件。
要理解子句，考慮一個employee_tbl表有以下記錄：
mysql> SELECT * FROM employee_tbl; +------+------+------------+--------------------+ | id | name | work_date | daily_typing_pages | +------+------+------------+--------------------+ | 1 | John | 2007-01-24 | 250 | | 2 | Ram | 2007-05-27 | 220 | | 3 | Jack | 2007-05-06 | 170 | | 3 | Jack | 2007-04-06 | 100 | | 4 | Jill | 2007-04-06 | 220 | | 5 | Zara | 2007-06-06 | 300 | | 5 | Zara | 2007-02-06 | 350 | +------+------+------------+--------------------+ 7 rows in set (0.00 sec)
現在假定上表的基礎上，想獲取條件為daily_typing_pages大於等於170並小於等於300記錄。這可以使用>=和<=條件如下：
mysql>SELECT * FROM employee_tbl
->WHERE daily_typing_pages >= 170 AND
->daily_typing_pages <= 300;
+------+------+------------+--------------------+
| id | name | work_date | daily_typing_pages |
+------+------+------------+--------------------+
| 1 | John | 2007-01-24 | 250 |
| 2 | Ram | 2007-05-27 | 220 |
| 3 | Jack | 2007-05-06 | 170 |
| 4 | Jill | 2007-04-06 | 220 |
| 5 | Zara | 2007-06-06 | 300 |
+------+------+------------+--------------------+
5 rows in set (0.03 sec)
同樣可以使用 BETWEEN 子句來實現如下：
mysql> SELECT * FROM employee_tbl
-> WHERE daily_typing_pages BETWEEN 170 AND 300;
+------+------+------------+--------------------+
| id | name | work_date | daily_typing_pages |
+------+------+------------+--------------------+
| 1 | John | 2007-01-24 | 250 |
| 2 | Ram | 2007-05-27 | 220 |
| 3 | Jack | 2007-05-06 | 170 |
| 4 | Jill | 2007-04-06 | 220 |
| 5 | Zara | 2007-06-06 | 300 |
+------+------+------------+--------------------+
5 rows in set (0.03 sec)