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Well enough.

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Alan Shore via RPG400-L
Sent: Tuesday, August 25, 2020 10:51 AM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Cc: Alan Shore <ashore@xxxxxxxx>
Subject: RE: [EXTERNAL] Re: legacy date hell

If the field being displayed is an expiration date - 15 years in the future - the display would be
08/25/35
That means in 4 years time - there will be expiration dates of
08/25/39
Which means that at THAT time - you have less than 4 months to fix this Will you still be working there in 4 years and 4 months?
Or even worse - 19 years into the future Will you still be working there in 4 months time?

Hope this helps

Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill


-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of Duane Scott
Sent: Tuesday, August 25, 2020 10:45 AM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: [EXTERNAL] Re: legacy date hell

I'm trying to understand the math on your answer Alan.

And regardless of if I'm going to be working, I don't want somebody talking smack about me like I talk about pre-me programmers. Fix it like the user wants it or fix it correctly. Pick one. But document it well if doing it like the user wants.

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Alan Shore via RPG400-L
Sent: Tuesday, August 25, 2020 9:29 AM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Cc: Alan Shore <ashore@xxxxxxxx>
Subject: RE: [EXTERNAL] Re: legacy date hell

You are assuming that this is not some expiration date, 15 years into the future That's one of the predicaments Im facing

Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill


-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of Jeff Crosby
Sent: Tuesday, August 25, 2020 9:22 AM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Re: legacy date hell

You still gonna be working in 2039? :)


On Tue, Aug 25, 2020 at 9:19 AM Jay Vaughn <jeffersonvaughn@xxxxxxxxx>
wrote:

So we have an input date on the screen as 3 separate fields... mm dd
yy

Biz wants the ability to put a "max" date of 12/31/9999 in so that
this record never expires.

I guess they didn't review the 2 digit year on the screen first...
because if you put 99 in then when it comes time to store that input
into the table where the date is 8s0, then it will think it is 1999.

And if we do store the date in the table as 12/31/9999, whenever any
other pgm tries to convert from *ISO to *MDY, the pgm will blow up,
because 9999 is not a valid date for *MDY.

So the way I see it the options are, train the user to input 39 into
the screen yy for the max date which is the least invasive approach
(and will create a new y2k scenario). OR expand screen date year to
yyyy and refactor any and all pgms that convert this 8s0 date from
*MDY to *ISO to handle the 9999 stored year correctly.

Pretty sure they will want to go with the 39 approach as they "claim"
the system will be decommissioned in a couple years (which I've heard
that a million times before).

Any other suggestions I am overlooking?


tia

Jay
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