floor¶
This function is used to round down a to the nearest integer.
Syntax¶
floor(DOUBLE a)
Parameters¶
Parameter | Mandatory | Type | Description |
|---|---|---|---|
a | Yes | DOUBLE, BIGINT, DECIMAL, or STRING | The value can be a float, integer, or string. If the value is not of the DOUBLE type, the system will implicitly convert it to the DOUBLE type for calculation. |
Return Values¶
The return value is of the BIGINT type.
Note
If the value of a is NULL, NULL is returned.
Example Code¶
The value 1 is returned.
select floor(1.2);
The value -2 is returned.
select floor(-1.2);
The value NULL is returned.
select floor(null);