sql获取当前周、月、季-前半年、后半年等数据

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本周：select * from table where datediff(week,C_CALLTIME,getdate())=0 --C_CALLTIME 为日期字段
本月：select * from table where datediff(Month,C_CALLTIME,getdate())=0 --C_CALLTIME 为日期字段
本季：select * from table where datediff(qq,C_CALLTIME,getdate())=0
前半年1-6，后半年7-12：select * from table where datepart(mm,C_CALLTIME)/7 = datepart(mm,getdate())/7

sql本周热点, sql 本周数据查询:

select top 5 * from table where addtime between dateadd('d',-weekday(date()),date()) and date() order by hits desc,id desc
date = "2003-06-08"
date = dateadd("d",-(Weekday(date,vbMonday)-1),date)

查询本周，其他的类似：

Select * from table where t_date 〉= date and t_date 〈 dateadd("d",8,date)

Select * from table where t_date 〉= cdate("2003-06-08"）and t_date 〈= cdate("2003-06-14")

我写的查询语句。可行.. ,适合中国的星期算法!
select top 5 * from table where addtime between dateadd(’d’,-weekday(date()),date()) and date() order by hits desc,id desc