类别：: 数值函数（三角函数）

DEGREES¶

将弧度转换为度。

语法¶

DEGREES( <input_expr> )

实参¶

input_expr: The value or expression to operate on. The data type must be FLOAT.

返回¶

This function returns a value of type FLOAT.

示例¶

显示 1/3 弧度、1 弧度和 3 弧度的度数：

SELECT DEGREES(PI()/3), DEGREES(PI()), DEGREES(3 * PI()), DEGREES(1);

+-----------------+---------------+-------------------+--------------+
| DEGREES(PI()/3) | DEGREES(PI()) | DEGREES(3 * PI()) |   DEGREES(1) |
|-----------------+---------------+-------------------+--------------|
|              60 |           180 |               540 | 57.295779513 |
+-----------------+---------------+-------------------+--------------+