round
description
Syntax
BIGINT round(DOUBLE x)
将x四舍五入后保留整数部分.
example
mysql> select round(2.4);
+------------+
| round(2.4) |
+------------+
| 2 |
+------------+
mysql> select round(2.5);
+------------+
| round(2.5) |
+------------+
| 3 |
+------------+
mysql> select round(-3.4);
+-------------+
| round(-3.4) |
+-------------+
| -3 |
+-------------+
mysql> select round(-3.5);
+-------------+
| round(-3.5) |
+-------------+
| -4 |
+-------------+keywords
ROUND