Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Tsql to calculate workdays - holidays: for current month


Tsql to calculate workdays - holidays: for current month

Author
Message
David Smerchek
David Smerchek
Ten Centuries
Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)Ten Centuries (1.1K reputation)

Group: General Forum Members
Points: 1079 Visits: 199
SELECT DATEDIFF (day, Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110), Convert(varchar(11),GETDATE(),110))
- (2 * DATEDIFF(week, Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110), Convert(varchar(11),GETDATE(),110)))
- CASE WHEN DATEPART(weekday, DATEADD(d,-(DAY(getdate())-1),getdate()) + @@DATEFIRST) = 1 THEN 1 ELSE 0 END - CASE WHEN DATEPART(weekday, GETDATE() + @@DATEFIRST) = 1 THEN 1 ELSE 0 END
-count(
Case
when '01/01/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110) then 1
when '7/4/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110)then 1
when '9/2/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110)then 1
when '11/28/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110)then 1
when '12/25/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110) then 1
end) as WorkDays
Sean Lange
Sean Lange
SSCoach
SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)

Group: General Forum Members
Points: 16539 Visits: 16992
Is there a question here or are you sharing something?

_______________________________________________________________

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 Moden's splitter.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
Jeff Moden
Jeff Moden
SSC-Forever
SSC-Forever (44K reputation)SSC-Forever (44K reputation)SSC-Forever (44K reputation)SSC-Forever (44K reputation)SSC-Forever (44K reputation)SSC-Forever (44K reputation)SSC-Forever (44K reputation)SSC-Forever (44K reputation)

Group: General Forum Members
Points: 44956 Visits: 39862
David Smerchek (6/19/2013)
SELECT DATEDIFF (day, Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110), Convert(varchar(11),GETDATE(),110))
- (2 * DATEDIFF(week, Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110), Convert(varchar(11),GETDATE(),110)))
- CASE WHEN DATEPART(weekday, DATEADD(d,-(DAY(getdate())-1),getdate()) + @@DATEFIRST) = 1 THEN 1 ELSE 0 END - CASE WHEN DATEPART(weekday, GETDATE() + @@DATEFIRST) = 1 THEN 1 ELSE 0 END
-count(
Case
when '01/01/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110) then 1
when '7/4/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110)then 1
when '9/2/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110)then 1
when '11/28/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110)then 1
when '12/25/2013' between Convert(Varchar(11),DATEADD(d,-(DAY(getdate())-1),getdate()),110) and Convert(varchar(11),GETDATE(),110) then 1
end) as WorkDays


The problem with such code is that it uses hardcoded dates that must be updated every year. If you forget, you can really mess up a whole bunch of things. Using a Calendar table would likely be a much better solution.

Whatever solution you use, at least add some error handling for when you run out of dates or have exceeded hardcoded expectations.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
     Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is usually not.
Just because you can do something in PowerShell, doesnt mean you should. Wink

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search