Mysql rounding function

Two rounding functions of Mysq:

ceil (): Improvement arrangement

floor(): round down

round(): round up

 

mysql> select ceil(10/11),floor(10/11),round(10/20);
+-------------+--------------+--------------+
| ceil(10/11) | floor(10/11) | round(10/20) |
+-------------+--------------+--------------+
|           1 |            0 |            1 |
+-------------+--------------+--------------+