sql 获取本周、本月数据

获取当天：

select * from t_User_Video where datediff(DAY,AddDate,getdate())=0

获取本周：

select * from t_User_Video where datediff(week,AddDate,getdate())=0

AddDate 为时间类型的字段

获取本月：

select * from t_User_Video where datediff(MONTH,AddDate,getdate())=0

获取本季：

select * from t_User_Video where datediff(qq,AddDate,getdate())=0