摘要： select * from orders where month(orderdate)= (select month(orderdate) from orders where orderid=10248)1.一个月第一天的Select DATEADD(mm, DATEDIFF(mm,0,getdate()), 0)2.本周的星期一Select DATEADD(wk, DATEDIFF(wk,0,g... 阅读全文