我想在我的 Oracle 函数中从出生日期计算当前年龄.
I want to calculate the current Age from Date of Birth in my Oracle function.
我使用的是 (Today-Dob)/30/12
,但这并不准确,因为有些月份有 31 天.
What I am using is (Today-Dob)/30/12
, but this is not accurate as some months have 31 days.
我需要以最大的精度获得正确的年龄.我怎样才能做到这一点?
I need to get the correct age with the maximum precision. How can I do that?
SQL> select trunc(months_between(sysdate,dob)/12) year,
2 trunc(mod(months_between(sysdate,dob),12)) month,
3 trunc(sysdate-add_months(dob,trunc(months_between(sysdate,dob)/12)*12+trunc(mod(months_between(sysdate,dob),12)))) day
4 from (Select to_date('15122000','DDMMYYYY') dob from dual);
YEAR MONTH DAY
---------- ---------- ----------
9 5 26
SQL>
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