--语法:DATEPART(datepart,date)
SELECT DATEPART(yy,getdate()) AS '年',
DATEPART(qq,getdate()) AS '季度',
DATEPART(mm,getdate()) AS '月',
DATEPART(dy,getdate()) AS '年中的日',
DATEPART(dd,getdate()) AS '日',
DATEPART(wk,getdate()) AS '周',
DATEPART(dw,getdate()) AS '星期',--一周的第几天(老外周日是第一天)可以用datename(weekday,getdate()) as weekday
DATEPART(hh,getdate()) AS '小时',
DATEPART(mi,getdate()) AS '分钟',
DATEPART(ss,getdate()) AS '秒',
DATEPART(ms,getdate()) AS '毫秒',
datename(weekday,getdate()) as weekday