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MySQL中BETWEEN子句的用法详解

可以使用IN子句来代替相结合的“大于等于和小于等于”的条件。

要了解BETWEEN 子句考虑的EMPLOYEE_TBL表有以下记录:

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12345678910111213mysql> 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)

现在,假设根据上表想获取记录条件daily_typing_pages超过170,等于和小于300。这可以使用如下条件>=和<=

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12345678910111213mysql>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)

同样可以实现使用BETWEEN子句如下:

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123456789101112mysql> 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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