Comments on: Time-Sliced Measures Part I: Defining the Problem http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/ ...you are in a twisty maze of passageways, all different... Tue, 07 Feb 2012 17:17:49 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: Shiva http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-686 Shiva Fri, 21 Aug 2009 10:35:24 +0000 http://www.dagira.com/?p=124#comment-686 This topic doesn't mean the one you published........... This time sliced measures..... This topic as a whole is a killer... i believe one who does this perfectly he can do anything in time related fields..... This topic doesn’t mean the one you published………..

This time sliced measures….. This topic as a whole is a killer… i believe one who does this perfectly he can do anything in time related fields…..

]]> By: Shiva http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-685 Shiva Fri, 21 Aug 2009 10:28:38 +0000 http://www.dagira.com/?p=124#comment-685 When are you going to publish your second part Dave..... This topic is a nightmare for me..... I'm looking forward to it. I've also posted one of the ways to calculate YTD and MTD etc.... in your 2007 blog... its just i came to know of this link few days back. I'm repeating my formula here also ..... SDOY (start date of year): =To_Date("1/1"+FormatDate(currentdate();"yyyy");"MM/dd/yyyy") Then you have the current date with you ..... as currentdate() Use these 2 to create YTD Similarly for YTM...... Regards, When are you going to publish your second part Dave…..
This topic is a nightmare for me….. I’m looking forward to it.

I’ve also posted one of the ways to calculate YTD and MTD etc…. in your 2007 blog… its just i came to know of this link few days back.
I’m repeating my formula here also …..

SDOY (start date of year): =To_Date(”1/1″+FormatDate(currentdate();”yyyy”);”MM/dd/yyyy”)
Then you have the current date with you ….. as currentdate()
Use these 2 to create YTD
Similarly for YTM……

Regards,

]]> By: Andreas http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-677 Andreas Tue, 18 Aug 2009 14:14:16 +0000 http://www.dagira.com/?p=124#comment-677 Hmm, a normalized data model is really bad for reporting, it is typically used for OLTP systems or as an atomic layer for a data warehouse. Nevertheless, one should denormalize the 3NF as necessary. Of course the standard (Kimbal) Star-schema is ideal for reporting (I know this is nothing new for you Eileen though). If you needed various time-sliced measures and have the luxury of a data mart/data warehouse, then calculating some of the time-sliced measures (such as Current YTD, Previous YTD, etc.) as part of the fact table (=additional columns) would be the easiest IMHO. Hmm, a normalized data model is really bad for reporting, it is typically used for OLTP systems or as an atomic layer for a data warehouse. Nevertheless, one should denormalize the 3NF as necessary. Of course the standard (Kimbal) Star-schema is ideal for reporting (I know this is nothing new for you Eileen though).

If you needed various time-sliced measures and have the luxury of a data mart/data warehouse, then calculating some of the time-sliced measures (such as Current YTD, Previous YTD, etc.) as part of the fact table (=additional columns) would be the easiest IMHO.

]]> By: Dave Rathbun http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-673 Dave Rathbun Tue, 18 Aug 2009 01:53:28 +0000 http://www.dagira.com/?p=124#comment-673 It should work okay, but could get really messy. The driving factor here is you have an alias / context for every time-slice / fact combination. So if you have pseudo-fact tables (anything with measures, basically, think of the Motors training database if you want) and multiple contexts already, then the number of contexts that you'll have could become ... unwieldy. It should work okay, but could get really messy. The driving factor here is you have an alias / context for every time-slice / fact combination. So if you have pseudo-fact tables (anything with measures, basically, think of the Motors training database if you want) and multiple contexts already, then the number of contexts that you’ll have could become … unwieldy.

]]> By: Eileen King http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-672 Eileen King Mon, 17 Aug 2009 20:26:17 +0000 http://www.dagira.com/?p=124#comment-672 Here's the REAL question... How do you think this would work with a 3NF data model with multiple contexts by subject? Here’s the REAL question…

How do you think this would work with a 3NF data model with multiple contexts by subject?

]]> By: Eileen King http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-670 Eileen King Mon, 17 Aug 2009 19:14:27 +0000 http://www.dagira.com/?p=124#comment-670 I've got to have the implementation finished this week... :) I’ve got to have the implementation finished this week… :)

]]> By: Dave Rathbun http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-666 Dave Rathbun Sun, 16 Aug 2009 22:37:37 +0000 http://www.dagira.com/?p=124#comment-666 Eileen, the answer to your question is scheduled to come out shortly. :) Eileen, the answer to your question is scheduled to come out shortly. :)

]]> By: Eileen King http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-664 Eileen King Fri, 14 Aug 2009 13:47:48 +0000 http://www.dagira.com/?p=124#comment-664 I've worked with it and to answer my own question, the answer is yes. I’ve worked with it and to answer my own question, the answer is yes.

]]> By: Eileen King http://www.dagira.com/2009/08/08/time-sliced-measures-part-i-defining-the-problem/comment-page-1/#comment-663 Eileen King Tue, 11 Aug 2009 20:32:36 +0000 http://www.dagira.com/?p=124#comment-663 Dave, This is awesome! I was looking at your presentation for my current project so the fact that you blogged about is even better. I was hoping you could clarify Slide 23 for me. What information actually goes into "cal_tmslc_mn_val"? You have it labeled as the Time slice name. Would I have one for each of the different time slice periods? So I would have rows with start and end dates for period, quarter, YTD, full period, etc... Thanks! Dave,

This is awesome! I was looking at your presentation for my current project so the fact that you blogged about is even better.

I was hoping you could clarify Slide 23 for me. What information actually goes into “cal_tmslc_mn_val”? You have it labeled as the Time slice name. Would I have one for each of the different time slice periods? So I would have rows with start and end dates for period, quarter, YTD, full period, etc…

Thanks!

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