oracle 四舍五入取得的数值

SELECT ROUND( number, [ decimal_places ] ) FROM DUAL


说明:

number : 将要处理的数值

decimal_places : 四舍五入,小数取几位,不填默认为0




Sample :


select round(123.456) from dual;              结果: 123

select round(123.456, 0) from dual;          结果: 123

select round(123.456, 1) from dual;          结果: 123.5

select round(123.456, 2) from dual;          结果:123.46

select round(123.456, 3) from dual;          结果: 123.456

select round(-123.456, 2) from dual;         结果:-123.46

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