這篇文章主要介紹了MySQL中BETWEEN子句的用法詳解,是MySQL入門學習中的基礎知識,需要的朋友可以參考下
可以使用IN子句來代替相結合的“大于等于和小于等于”的條件。
要了解BETWEEN 子句考慮的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,假設根據上表想獲取記錄條件daily_typing_pages超過170,等于和小于300。這可以使用如下條件>=和<=
- 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)
同樣可以實現使用BETWEEN子句如下:
- 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)
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