本週：select * from table where datediff(week,c_calltime,getdate())=0 --c_calltime 為日期字段
本月：select * from table where datediff(month,c_calltime,getdate())=0 --c_calltime 為日期字段
本季：select * from table where datediff(qq,c_calltime,getdate())=0
求以下日期sql:
昨天 select convert(varchar(10),getdate() - 1,120)
明天select convert(varchar(10),getdate() + 1,120)
最近七天
select * from tb where 時間字段 >= convert(varchar(10),getdate() - 7,120)
隨後七天
select * from tb where 時間字段 <= convert(varchar(10),getdate() + 7,120) and 時間字段 >= 時間字段
上月select * from tb where month(時間字段) = month(getdate()) - 1
本月select * from tb where month(時間字段) = month(getdate())
下月select * from tb where month(時間字段) = month(getdate()) + 1
如果是在表中查詢:
--昨天
select * from tablename where datediff(dd, datetimcol, getdate()) = 1
--明天
select * from tablename where datediff(dd, getdate(), datetimcol) = 1
--最近七天
select * from tablename where datediff(dd, datetimcol, getdate()) <= 7
--隨後七天
select * from tablename where datediff(dd, getdate(), datetimcol) <= 7
--上週
select * from tablename where datediff(wk, datetimcol, getdate()) = 1
--本週
select * from tablename where datediff(wk, datetimcol, getdate()) = 0
--下週
select * from tablename where datediff(wk, getdate(), datetimcol ) = 1
--上月
select * from tablename where datediff(mm, datetimcol, getdate()) = 1
--本月
select * from tablename where datediff(mm, datetimcol, getdate()) = 0
--下月
select * from tablename where datediff(mm, getdate(), datetimcol ) = 1
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