Oracle 通过出生日期计算年龄
方法一： SELECT TRUNC(months_between(sysdate, birth)/12) AS age from mytable 方法二： select TRUNC((to_char(sysdate, yyyyMMdd) – to_char(birth, yyyyMMdd)) / 10000) as age from mytable 注：sysdate 为系统日期时间，bi
方法一： SELECT TRUNC(months_between(sysdate, birth)/12) AS age from mytable 方法二： select TRUNC((to_char(sysdate, yyyyMMdd) – to_char(birth, yyyyMMdd)) / 10000) as age from mytable 注：sysdate 为系统日期时间，bi