转载自:https://www.yiibai.com/mysql/mysql_function_ceil.html
CEILING(X) 或 CEIL(X)
该函数返回的最小整数值,但不能小于X。 请看下面的例子:
mysql> SELECT CEILING(3.46);
+---------------------------------------------------------+
| CEILING(3.46) |
+---------------------------------------------------------+
| 4 |
+---------------------------------------------------------+
1 row in set (0.00 sec)
mysql> SELECT CEIL(-6.43);
+---------------------------------------------------------+
| CEIL(-6.43) |
+---------------------------------------------------------+
| -6 |
+---------------------------------------------------------+
1 row in set (0.00 sec)