经ACCESS数据库测试,可以使用datepart()函数,楼上的:where datepart('ww',日期字段) = datepart('ww',now())-1
select ShipRequestDate from dbo.OrderDetail
where ShipRequestDate between DATEADD(w, -(datepart(w,'2010-05-12')-1), '2010-05-12')
and DATEADD(W,7,DATEADD(w, -(datepart(w,'2010-05-12')-1), '2010-05-12'))
where datepart('ww',日期字段) = datepart('ww',now())-1
Select * from * where logtime between date()-weekday(date())-5 and date()-weekday(date())