摘要：
1 本周数据：2 select * from Keywords where datediff(week, Addtime,getdate())=03 本月：4 select * from Keywords where datediff(month, Addtime,getdate())=05 本季度：6 select * from Keywords where datediff(quarter, Addtime,getdate())=07 本年：8 select * from Keywords where datediff(year, Addtime,getdate())=0 阅读全文
