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MySQL ROUND() 函数

❮ MySQL 函数

示例

将数字四舍五入到小数点后两位

SELECT ROUND(135.375, 2);
自己试试 »

定义和用法

ROUND() 函数将数字四舍五入到指定的小数位数。

注意: 另请参阅 FLOOR() CEIL()CEILING()TRUNCATE() 函数。

语法

ROUND(number, decimals)

参数值

参数 描述
number 必需。要四舍五入的数字。
decimals 可选。将number四舍五入到的小数位数。如果省略,则返回整数(无小数位数)。

技术细节

适用于 从 MySQL 4.0 开始

更多示例

示例

将数字四舍五入到小数点后 0 位

SELECT ROUND(345.156, 0);
自己试试 »

示例

将 "Products" 表中的 Price 列四舍五入到小数点后 1 位

SELECT ProductName, Price, ROUND(Price, 1) AS RoundedPrice
FROM Products;
自己试试 »

❮ MySQL 函数

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