MySQL中MIN()函数的使用教程

mysql SELECT MIN(daily_typing_pages) least, MAX(daily_typing_pages) max - FROM employee_tbl;+-------+------+| least | max |+-------+------+| 100 | 350 |+-------+------+1 row in set (0.01 sec)

您能够选择MIN函数和MAX函数一同,查找最小值。试试上边包车型大巴例子:

MySQL的MIN函数是用来搜索二个记录集最小值的记录。

当今倘诺下边包车型地铁表的根基上想要取daily_typing_pages的小小值,那么能够那样做,不难地应用上面的一声令下:

mysql id, name, work_date, MIN(daily_typing_pages) - FROM employee_tbl GROUP BY name;+------+------+------------+-------------------------+| id | name | work_date | MIN(daily_typing_pages) |+------+------+------------+-------------------------+| 3 | Jack | 2007-05-06 | 100 || 4 | Jill | 2007-04-06 | 220 || 1 | John | 2007-01-24 | 250 || 2 | Ram | 2007-05-27 | 220 || 5 | Zara | 2007-06-06 | 300 |+------+------+------------+-------------------------+5 rows in set (0.00 sec)

要询问MIN函数酌量的EMPLOYEE_TBL表具备以下记录:

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)
mysql SELECT MIN(daily_typing_pages) - FROM employee_tbl;+-------------------------+| MIN(daily_typing_pages) |+-------------------------+| 100 |+-------------------------+1 row in set (0.00 sec)

能够找到全体记录的一丝一毫值按名字使用GROUP BY子句如下:

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