虽然在Access中不能使用DateDiff函数,但我们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
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