MySQL MIN () function usage tutorial, mysqlmin

MySQL MIN () function usage tutorial, mysqlmin

MySQL MIN function is used to find the minimum value of a record set.

The EMPLOYEE_TBL table for MIN functions has the following records:

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)

Now, if you want to obtain the minimum value of daily_typing_pages based on the preceding table, you can simply use the following command:

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

You can find the minimum values of all records BY name using the group by clause as follows:

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)

You can use the MIN function and the MAX function together to find the minimum value. Try the following example:

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)