(20090228,20080228)====12
(20090228,20080229)====12
(20080229,20070228)====12
(20100331,20100228)====1
(20100228,20100128)====1
(20100327,20100228)====0.967741935
【oracle】 months_between(date1,date2)
【多是百度所得
用于个人总结
若有原著作者
我就给它密了】
(20090228,20080228)====12
(20090228,20080229)====12
(20080229,20070228)====12
(20100331,20100228)====1
(20100228,20100128)====1
(20100327,20100228)====0.967741935