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  • Subject: Re: Premenos and the date data type window.
  • From: Glenn Ericson <Glenn-Ericson@xxxxxxx>
  • Date: Mon, 23 Feb 1998 12:07:50 -0500

COOL stuff.  So three decades go away.  Well they were not good times with
the stock market  and  depressions and WW 1 <bg>. 
You  get a " File I/O Error" REAL SLICK - that is an informative message.
Should  there be a contest for  better verbage to describe what happened.

At 10:32 AM 2/23/98 -0400, you wrote:
>>What  happens to events dated  between[19xx]  010100 and 123139 era  with
>>the OS400 window structure? Do they  system window out to 20xx ?
>>
>They don't exist or you get an execution time error trying to move a date
>prior to 1940 or greater than 2039 to a 2 digit year date format.  Try
>specifying DATFMT(*MDY) in the H-spec for an RPG IV program and then read a
>file with a *USA date prior to 1940.  You get a FILE I/O ERROR!
>
>> 
>>At 06:52 PM 2/22/98 -0500, you wrote:
>>>>Chris:
>>>>>
>>>>>
>>>>>> Date windows of 1940-2039, 1970-2069, or any other fixed window are
>>>>>>used by
>>>>>> those who do not care if their code dies in the future.  I hope I am
>>alive
>>>>>> in the year 2039 to see how IBM explains why we have to go through this
>>>>>>Y2K
>>>>>> thing a second time in the same century.
>>>>>
>>>>>Don't you think they will probably just roll the window forward? I would
>>>>>suspect that this would be a workable solution since the IBM conversions
>>>>>are "black box".
>>>>>
>>>>Part of the problem is *LOVAL is D'01/01/40' and *HIVAL is '12/31/39' for
>>>>dates with 2 digit years.
>>>>
>>>>
>>>>Charlie Massoglia, Massoglia Technical Consulting, Inc.
>>>
>>>
>>>Another problem with rolling windows is that people live long enough to
>>>foul up the windows!  I have an aunt who was born ca. 1904.  My parents
>>>were born in the 20s.  I was born in 1950, and plan to see 2050.  Any
>>>rolling window starts causing problems when you look at spans of human
>>>lifetime approaching a century or more.
>>>
>>>An organization I worked with has membership records going back close to 80
>>>years.  I had to deal with the 1800-1900 boundary for birthdays of people
>>>who were members that long ago.  A rolling window is NOT a solution, just a
>>>bandaid.
>>>
>>>--Paul E Musselman
>>>PaulMmn@ix.netcom.com
>
>
>Charlie Massoglia, Massoglia Technical Consulting, Inc.
>PO Box 1065, Okemos, MI 48854, USA
>517-676-9700  Fax: 517-676-1006  EMAIL: cmassoglia@voyager.net
>
>
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