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find rows that fall between a day and time of the week in sql server

开发者 https://www.devze.com 2023-02-08 11:28 出处:网络
I have a table of rows in MS SQL that contain a start and end day of the week, hour, and time. I need a T-SQL query that can pull rows from that table where GETDATE matches the day of week and time of

I have a table of rows in MS SQL that contain a start and end day of the week, hour, and time. I need a T-SQL query that can pull rows from that table where GETDATE matches the day of week and time of those rows. Specifically, I need the query to work if a row has a day/time that starts on one day of the week and ends on the next day.

Here's the structure I'm working with:

_start_day_of_week (int) = 5

_start_hour (int) = 15

_start_minute (int) = 30

_end_day_of_week (int) = 6

_end_hour (int) = 2

_end_minute (int) = 30

_title (string) = 'My Sample Row'

_id (int) = 1

How would I retrieve this ro开发者_JAVA技巧w given the current DATETIME?


you could try something like:

select * from [yourtable]
where yourdatefield between getDate() and (getDate()+1 )


You should be able to use datepart function to go with getdate function:

http://msdn.microsoft.com/en-us/library/aa258265%28v=sql.80%29.aspx


I am still unclear about your requirements as they seem a bit impracticle. But here is my go.

DECLARE @A AS TABLE(
_start_day_of_week int,
_start_hour int,
_start_minute int,
_end_day_of_week int,
_end_hour int,
_end_minute int,
_title varchar(10),
_id int 
)
--Above is temp table for example
INSERT @A
SELECT 5,15,30,6,2,30,'SAMPLE 1', 1 UNION ALL
SELECT 6,15,30,6,17,30,'SAMPLE 2', 2

DECLARE @month int = datepart(month,getdate())
DECLARE @currentDay int = datepart(dw,getdate())
DECLARE @currentHour int = datepart(hour, getdate())
DECLARE @currentMinute int = datepart(minute, getdate())



SELECT * FROM @A --Don't use select *. This is just an example.
WHERE --Where GETDATE matches
_start_day_of_week = @currentDay --The day of week
AND
_start_hour = @currentHour --and time of those rows
AND
_start_minute = @currentMinute
--I have not done any matching against the _end columns as
--your criteria are vague. Should it exclude all days except
--the current day and the currentday+1?
-- But you would use a similar method.
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