Solved

Converting a text description of time to an ordinary Datetime value in SQL 2008

Posted on 2011-02-23
3
348 Views
Last Modified: 2012-05-11
I want to convert a varchar expression describing time into a date time value.  I will be given descriptions like this:  2010D320HR22MIN23
Which means the 320th day of Year 2010, Hour 22, Minute 23.
It may be equivalent to a string like this:
2010-10-19 22:23:00.0000000  
(Assuming 10-19 is the 320th day of 2010, I'm not sure if this is right)
So what I want is a function that takes 2010D320HR22MIN23 as input
and returns 2010-11-19 22:23:00.0000000  

I don't see any function that converts day of year to month and day. Is there one?  Or must one be built from scratch? Or is there another way of doing this?

Thanks,

C




0
Comment
Question by:cipriano555
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 15

Expert Comment

by:derekkromm
ID: 34965472
declare @x varchar(100)
set @x = '2010D320HR22MIN23'

declare @y datetime
select @y = 
	dateadd(
		mi,
		convert(int,  right(@x, len(@x) - charindex('MIN', @x)-2)), 
		dateadd(
			hh, 
			convert(int, right(left(@x, charindex('MIN', @x)-1), len(left(@x, charindex('MIN', @x)-1)) - charindex('HR', @x)-1)), 
			dateadd(
				dd, 
				convert(int, right(left(@x, charindex('HR', @x)-1), len(left(@x, charindex('HR', @x)-1)) - 5)), 
				convert(datetime, '1/1/' + left(@x, 4)))))
select @y

Open in new window

0
 
LVL 15

Accepted Solution

by:
derekkromm earned 500 total points
ID: 34965497
Obviously replace all instances of @x with the name of your variable or description column.

And actually, a small error since it starts on 1/1/YY and adds days, it'll be 1 day too far ahead from that original query. Updated:

declare @x varchar(100)
set @x = '2010D1HR22MIN23'

declare @y datetime
select @y = 
	dateadd(
		mi,
		convert(int,  right(@x, len(@x) - charindex('MIN', @x)-2)), 
		dateadd(
			hh, 
			convert(int, right(left(@x, charindex('MIN', @x)-1), len(left(@x, charindex('MIN', @x)-1)) - charindex('HR', @x)-1)), 
			dateadd(
				dd, 
				convert(int, right(left(@x, charindex('HR', @x)-1), len(left(@x, charindex('HR', @x)-1)) - 5)) - 1, 
				convert(datetime, '1/1/' + left(@x, 4)))))
select @y

Open in new window

0
 

Author Closing Comment

by:cipriano555
ID: 34965602
Thank you so much for your help
0

Featured Post

Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

SQL Server engine let you use a Windows account or a SQL Server account to connect to a SQL Server instance. This can be configured immediatly during the SQL Server installation or after in the Server Authentication section in the Server properties …
Citrix XenApp, Internet Explorer 11 set to Enterprise Mode and using central hosted sites.xml file.
In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question