sqlserver 获取到日期范围内每天，每周，每月，每年记录

--每天记录
DECLARE @start DATE,@end DATE
SET @start='2020-7-1'
SET @end='2020-7-20'

select 
DATEADD(DAY,number,@start) ymd
from master..spt_values
where type='p'  AND 
number<=DATEDIFF(day,@start,@end)

--每周记录
DECLARE @start DATE,@end DATE
SET @start='2020-6-1'
SET @end='2020-7-1'

select 
DATEADD(WEEK,number,@start) ymd
from master..spt_values
where type='p'  AND 
number<=DATEDIFF(WEEK,@start,@end)

--每月记录
DECLARE @start DATE,@end DATE
SET @start='2019-1-1'
SET @end='2020-7-1'

select 
DATEADD(MONTH,number,@start) ymd
from master..spt_values
where type='p'  AND 
number<=DATEDIFF(MONTH,@start,@end)

--每年记录
DECLARE @start DATE,@end DATE
SET @start='2019-1-1'
SET @end='2020-7-1'

select 
DATEADD(year,number,@start) ymd
from master..spt_values
where type='p'  AND 
number<=DATEDIFF(year,@start,@end)