least

description

Syntax

least(col_a, col_b, …, col_n)

column支持以下类型：TINYINT SMALLINT INT BIGINT LARGEINT FLOAT DOUBLE STRING DATETIME DECIMAL

比较n个column的大小返回其中的最小值.若column中有NULL，则返回NULL.

example

mysql> select least(-1, 0, 5, 8);
+--------------------+
| least(-1, 0, 5, 8) |
+--------------------+
|                 -1 |
+--------------------+
mysql> select least(-1, 0, 5, NULL);
+-----------------------+
| least(-1, 0, 5, NULL) |
+-----------------------+
| NULL                  |
+-----------------------+
mysql> select least(6.3, 4.29, 7.6876);
+--------------------------+
| least(6.3, 4.29, 7.6876) |
+--------------------------+
|                     4.29 |
+--------------------------+
mysql> select least("2022-02-26 20:02:11","2020-01-23 20:02:11","2020-06-22 20:02:11");
+----------------------------------------------------------------------------+
| least('2022-02-26 20:02:11', '2020-01-23 20:02:11', '2020-06-22 20:02:11') |
+----------------------------------------------------------------------------+
| 2020-01-23 20:02:11                                                        |
+----------------------------------------------------------------------------+

keywords

LEAST

greatest ln