Usage of floor in sql

The FLOOR() function in SQL rounds down the specified number. Usage syntax: FLOOR().

Usage of FLOOR() function in SQL

FLOOR() function is used to round down, that is, Rounds the specified number down to the nearest integer.

Syntax

<code>FLOOR(<数字>)</code>

Where:

• <Number>: The number to be rounded.

Usage

The usage of the FLOOR() function is very simple. Just pass the number you want to round as an argument to the function.

Example

The following example shows the usage of the FLOOR() function:

<code class="sql">-- 取整数字 12.34
SELECT FLOOR(12.34);  -- 返回 12

-- 取整浮点数 10.5
SELECT FLOOR(10.5);  -- 返回 10

-- 取整负数 -12.34
SELECT FLOOR(-12.34); -- 返回 -13</code>

Notes

• The FLOOR() function does not round zeros after the decimal point. For example, FLOOR(12.00) returns 12, not 11.
• FLOOR() function only rounds down. To round up, use the CEIL() function.

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