取出星期一日期
declare @sd datetime = '20121226'
declare @dd datetime = '20141231'
declare @t table (c1 datetime)
while @sd <= @dd
begin
if DATENAME(weekday,@sd) = 'Monday'
insert into @t values (@sd)
set @sd = DATEADD(day,1,@sd)
end
SELECT convert(VARCHAR(8),c1,112) FROM @t
