| 范文 | 
		     一起来学习看看吧:     我们虽然在Access中不能使用DateDiff函数,但可以使用日期函数来实现这一功能。看看下面这个“庞大”的示例,就是实现如何选择前8个包括今天及今天以前的日期的记录的语句:     select TOP 3 * from mytable where ((YEAR(ndate)     <"&year(now)&") or (YEAR(ndate)="&year(now)&" and MONTH(ndate)     <"&month(now)&") or (YEAR(ndate)="&year(now)&" and MONTH(ndate)="&month(now)&" and DAY(ndate)     <="&day(now)&")) and fenlei=4 order by id DESC |