Sorry - need 4 digit year..
datediff("n", cdate(format(ppaddt,"0000/
Main Topics
Browse All Topics
Loading Advertisement...
Question
datediff from a yyyymmdd #### fields
I am not sure how to get started with this
DATEDIFF(PPADDT PPADTM, PPDSDT PPDSTM) ... I would like results to show when the difference is greater than 24 hours as well. (dd:hh:mm) or ex 40:mm)
PPADDT PPADTM PPDSDT PPDSTM
20091001 2310 20091002 450
20091001 2338 20091002 500
20091002 20 20091002 545
20091002 40 20091002 520
20091002 258 20091002 447
20091002 609 20091002 820
20091002 637 20091002 825
20091002 730 20091002 930
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Subscribe now for full access to Experts Exchange and get
Instant Access to this Solution
- Plus...
- 30 Day FREE access, no risk, no obligation
- Collaborate with the world's top tech experts
- Unlimited access to our exclusive solution database
- Never be left without tech help again
Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.
- "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
- "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
- "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.
See what Experts Exchange can do for you.
Got a question?
We've got the answer.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
Need individual assistance?
Our experts are ready to help.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Want to learn from the best?
Read articles from industry experts.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Working on a long term project?
Store your work and research.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
What Makes Experts Exchange Unique?
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Trusted by the world's most respected brands.
Faithfully serving IT professionals since 1996.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Free Tech Articles
-
WARNING: 5 Reasons why you should NEVER fix a computer for free.
It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
-
SCCM OSD Basic troubleshooting
SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
-
Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
-
Create a Win7 Gadget
This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
-
Outlook continually prompting for username and password
There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
-
Backup Exchange 2010 Information Store using Windows Backup
There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...
Cloud Class Webinars
- Avoiding Bugs in Microsoft Access
Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
- Top 10 Best New Features in Visio 2010
Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
- IT Consultant Business Secrets Revealed
Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
- Disaster Recovery and Business Continuity
Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
- Organize Your Visio Diagrams with Containers and Lists
Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
- How to Us Objects, Properties, Events and Methods in Microsoft Access
Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...
Join the Community
Give a Little. Get a Lot.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Answers
No, sorry, you can't use the Format function here. Format turns a date/time into a string - it cannot do the reverse!
I'm not clear whether your data is text or numeric, and this would make a difference to the approach. For example, to convert a string (s) in the form yyyymmdd to a date, you would use:
DateSerial( Left(s, 4), Mid(s, 5, 2), Right(s, 2) )
If the yyyymmdd was, say, a long integer (d) then you would use an arithmetic approach:
DateSerial( d \ 10000, (d \ 100) Mod 100, d Mod 100)
Looking at your time values, it looks like all your data is numeric - for example, 258 is presumably 2:58am and 20 is presumably 00:20, or 12:20am.
So, the first thing to do is write a function to take the date field and the time field and convert them into a date/time data type:
Public Function MakeDate( d as Long, t as Long) as Date
MakeDate = DateSerial( d \ 10000, (d \ 100) Mod 100, d Mod 100) _
+ TimeSerial( t \ 100, t Mod 100, 0 )
End Function
To find the difference between the two dates and times, use the smallest granularity in the source data for the unit - in this case, minutes:
DateDiff( "n", MakeDate(PPADDT, PPADTM), MakeDate(PPDSDT, PPDSTM) )
This will give you the difference, in minutes, between the two times.
To format this, once again you will need a custom function (the Format function is great for formatting points in time, but not durations). The following function will format a number of minutes as hh:mm, even if it is more than 24 hours:
Public Function MinsToHHMM( mins as Long ) as String
MinsToHHMM = mins \ 60 & ":" & Format( mins Mod 60, "00" )
End Function
Putting all this together, this should do the trick:
MinsToHHMM( DateDiff( "n", MakeDate(PPADDT, PPADTM), MakeDate(PPDSDT, PPDSTM) ) )
--
Graham
Hello Graham,
Format does in fact work, and I use this quite regularly. Peter's (modified) expression is:
DateDiff('n', Format([ppaddt],'0\-00\-00
Since Format() encounters a number format, it will, if needed, convert strings to numbers, and format them as numbers. This gives for example:
DateDiff('n', '2009-10-02 0:20', '2009-10-02 15:45')
DateDiff expects date/time parameters, and will convert them if needed. Since the strings are well-formed ISO dates, the conversion works.
I changed the format string slightly because '/' means "system date separator" (which can cause problems) and the space is my thousand separator (it needs to be escaped). Bottom line: escape all literals in format strings.
If PPADT is text, and if you want to avoid the implicit conversion to Long, you can format the string directly like this:
Format(PPADT, "@@@@-@@-@@")
If PPADT is a number it also works, but this time with an implicit conversion to string before the formatting...
Text formatting occurs left-to-right, so four '@' are needed. Number formatting occurs right-to-left, so Peter's first solution works just as well (on US computers).
Cheers!
(°v°)
3 Ways to Join
Business Accounts
- Perfect for organizations
- Multiple users
- Save over 36%
- Create a Business Account
Answer for Membership
- Earn free access
- Showcase your knowledge
- No credit card required
- Sign Up to Answer
Loading Advertisement...
by: peter57rPosted on 2009-11-01 at 00:46:36ID: 25712930
The datediff expression is to give the difference in minutes is ..
datediff("n", cdate(format(ppaddt,"00/00