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W.E.B

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Update SQL Date

Hello,
can you please help,
I need to update a lot of orders dates to a specific business date of the month.

Example
6th Business day in Jan 2014 is Wednesday 8th, 2014
NextRunDate  = '2014-01-08 05:00:00.000'

samples
UPdate schedules set NextRunDate = '6th Business day of January' where ScheduleID = 1704
UPdate schedules set NextRunDate = '6th Business day of Feb' where ScheduleID = 1706
UPdate schedules set NextRunDate = '6th Business day of March' where ScheduleID = 1752
UPdate schedules set NextRunDate = '6th Business day of April' where ScheduleID = 1753
UPdate schedules set NextRunDate = '6th Business day of May' where ScheduleID = 1754
UPdate schedules set NextRunDate = '6th Business day of June' where ScheduleID = 1755
UPdate schedules set NextRunDate = '6th Business day of July' where ScheduleID = 1756
UPdate schedules set NextRunDate = '6th Business day of August' where ScheduleID = 1757
UPdate schedules set NextRunDate = '6th Business day of Sept' where ScheduleID = 1759
UPdate schedules set NextRunDate = '6th Business day of Oct' where ScheduleID = 1761
UPdate schedules set NextRunDate = '6th Business day of Nov' where ScheduleID = 1762
UPdate schedules set NextRunDate = '6th Business day of Dec' where ScheduleID = 1763

Your help is appreciated.
thanks
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Jim Horn
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In your business / country / world how do you define '6th business day'?
Reason I ask is because SQL Server does not have a 'business day' function, and everyplace is different.  National holidays, state holidays, Green Bay Packers football games, Dave's birthday, special events, etc.  

I have an article out there on How to build a SQL Calendar Table, that will enable you to have a table of days, and specifically define what's a business day and what's not, so that you can pull off a 'give me the 6th business day' and be guaranteed of success.

Good luck.
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W.E.B

ASKER

hello,
business day is M-T-W-T-F (no matter if it is a holiday or not)
thanks,
check this.
DECLARE @workDays int, @calDays int,@NextRunDate datetime
SET @workDays = 6
SELECT @calDays = @workDays / 5 * 7 + @workDays % 5
WHILE DatePart(dw, DateAdd(dd, @calDays, '01/01/2014')) IN (7, 1)
  SET @calDays = @calDays + 1
SELECT @NextRunDate = DateAdd(dd, @calDays-1, '01/01/2014') 

Update schedules set NextRunDate = @NextRunDate 
-- Add your WHERE condition if needed.

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Avatar of W.E.B

ASKER

Hello,
thanks,
This works for January,
what about the rest of the months?

Thanks
Do you want to update all jan records with 6th workday of Jan, feb records with 6th workday of Feb and so on..?
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ASKER

that is exactly it.

thanks for your help.
How many years worth data you have? 1 year?
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ASKER

correct,
1 year.
ASKER CERTIFIED SOLUTION
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Sharath S
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ASKER

super,
thank you.