Help Center/ Data Lake Insight/ Spark SQL Syntax Reference/ Built-In Functions/ Mathematical Functions/ floor
Updated on 2023-10-25 GMT+08:00
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floor

This function is used to round down a to the nearest integer.

Syntax

floor(DOUBLE a)

Parameters

Table 1 Parameter

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.

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);
Parent topic: Mathematical Functions