MIN
Declaration
MIN([DISTINCT | ALL] expr)
Description
Returns the minimum value in the specified data.
The value of MIN() can be a string parameter, returning the smallest string value. The DISTINCT keyword specifies to calculate only distinct values, with the default being ALL.
Examples
Assume table a has three rows of data: id=1,num=10, id=2,num=20, and id=3,num=30. To select the minimum value of num:
SELECT MIN(num) FROM a;
+----------------+
| MIN(num) |
+----------------+
| 10 |
+----------------+
1 row in set (0.001 sec)