?? on creating a temp table for a date range

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?? on creating a temp table for a date range

jbalbo

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June 25, 2013 at 6:58 am

#279516

Hi,
Can someone pint me in the direction of where I can see some examples on creating a temp table for a date range?
What I need to do is use SSRS with parameters for a month and year o create report. I then need to choose data within that month and create a matrix report.
Problem I find is some dates don't have data but I still want to show the date as null so I show all dates in the month. I assume I have to create a temp table using a dimdate table?
Thanks
Joe

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J Livingston SQL SSC Guru Points: 51550 More actions · Answer 1

search this site for "calendar table"

lots of articles that may help

________________________________________________________________
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and remember....every day is a school day

Sean Lange SSC Guru Points: 286590 More actions · Answer 2

And please don't post multiple threads with the same question.

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Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/

r.mitchell Old Hand Points: 368 More actions · Answer 3

I use a recursive CTE for this usually. In this example it will give you all the days in June. Had to use this when I created a calendar application with recurring entries. Sort of like outlook and needed to match the day of week based on its recurrence schedule. Like every week, 2 weeks, month... etc.

DECLARE @StartDate DATE = '6/1/2013';

WITH dt(MDate) AS (

SELECT @StartDate AS MDate

UNION ALL

SELECT DATEADD(dd, 1, MDate)

FROM dt

WHERE DATEADD(dd, 1, MDate) < DATEADD(mm, 1, @StartDate)

)

SELECT MDate FROM dt

Luis Cazares SSC Guru Points: 183706 More actions · Answer 4

r.mitchell (6/26/2013)
I use a recursive CTE for this usually. In this example it will give you all the days in June. Had to use this when I created a calendar application with recurring entries. Sort of like outlook and needed to match the day of week based on its recurrence schedule. Like every week, 2 weeks, month... etc.
DECLARE @StartDate DATE = '6/1/2013';
WITH dt(MDate) AS (
SELECT @StartDate AS MDate
UNION ALL
SELECT DATEADD(dd, 1, MDate)
FROM dt
WHERE DATEADD(dd, 1, MDate) < DATEADD(mm, 1, @StartDate)
)
SELECT MDate FROM dt

Please, avoid this and read the following article:

Hidden RBAR: Counting with Recursive CTE's[/url]

Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?

How to post data/code on a forum to get the best help: Option 1 / Option 2

Sean Lange SSC Guru Points: 286590 More actions · Answer 5

And here is an example of doing this without using a recursive cte for counting. This code also will only return data for the specified month even if the @StartDate is not the first of the month. To see what I mean change the start date to June 2nd and run the recursive version. It will return dates in July because it assumes the start date is the first of the month. Now run the one below with the same start date and it will only return 28 rows now.

DECLARE @StartDate DATE = '6/1/2013';

WITH

E1(N) AS (select 1 from (values (1),(1),(1),(1),(1),(1),(1),(1),(1),(1))dt(n)),

E2(N) AS (SELECT 1 FROM E1 a, E1 b), --10E+2 or 100 rows

cteTally(N) AS

(

SELECT ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E2

)

select DATEADD(day, N - 1, @StartDate)

from cteTally

where N <= DATEDIFF(day, @StartDate, dateadd(month, datediff(month, 0, @StartDate) + 1, 0))

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/

r.mitchell Old Hand Points: 368 More actions · Answer 6

Hmm. thanks for the good read. Time to change some code around 🙂