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Comparing dates in different formats


IBM Mainframe Forums -> SYNCSORT
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migusd

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Joined: 08 Aug 2014
Posts: 44
Location: USA

PostPosted: Sat Nov 18, 2017 3:02 am
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Hello guys,
I just haven't understand how to manage dates in SYNCSORT
Can someone help me understand it ?
I am comparing a date in the record with yesterday's date in the system
If they are different I need the record in the output file and set RC=4

So here is the code
Code:

  INREC BUILD=(FEMA,COM,HDAT,BLK,HTIM,BLK,DATE1(/)-1)                 
  SORT FIELDS=COPY,STOPAFT=1                                           
  OUTFIL INCLUDE=(HDAT,LT,25,10,CH),BUILD=(1,24),VTOF,                 
  NULLOFL=RC0                                                         
DATA DICTIONARY SYMBOLS SUBSTITUTED :                                 
INREC BUILD=(1,4,C',',6,10,C' ',17,8,C' ',DATE1(/)-1)                 
SORT FIELDS=COPY,STOPAFT=1                                             
OUTFIL INCLUDE=(6,10,CH,LT,25,10,CH),BUILD=(1,34),VTOF,NULLOFL=RC4     


So, I couldn't get the desired results. I force the output including both dates.
here is the output file
Code:

FEMA,11/13/2017 20:21:232017/11/16


So the comparing failed because of the date format being different.
I was looking at the manual and I saw Y2W meaning 2 digits for years.
So I tried Y4W. I believe it accepted it. but not Y4W-1
Code:

INREC BUILD=(1,4,C',',6,10,C' ',17,8,Y4W(/)-1)
                                           * 


So, how can I get yesterday's date in MM/DD/YYYY so I can compare it?
Also, is that the correct way of forcing RC=4 when condition is met?

Thank you
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sergeyken

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Joined: 29 Apr 2008
Posts: 2144
Location: USA

PostPosted: Tue Nov 21, 2017 12:10 am
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Y4W is the date FORMAT supported by SORT.
It cannot be used instead of date FUNCTION.

RTFM, please
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migusd

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Joined: 08 Aug 2014
Posts: 44
Location: USA

PostPosted: Tue Nov 21, 2017 12:23 am
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thanks Sergey,
I have solved my issue
I have a different issue now that I will soon post.
Thank you for your response
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sergeyken

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Joined: 29 Apr 2008
Posts: 2144
Location: USA

PostPosted: Tue Nov 21, 2017 12:33 am
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The easiest way to match date formats is, - to reformat the input field in accordance with the used DATE function, and then to compare two fields with the same format.

Correct way to force RC=4 is, parameter NULLOFL=RC4 in OUTREC/OUTFIL statement (to indicate that the corresponding file is empty)
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migusd

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Joined: 08 Aug 2014
Posts: 44
Location: USA

PostPosted: Tue Nov 21, 2017 3:28 am
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thanks Sergey.
I have not been able to get RC=4 when the output file is empty.
see my latest post
Thank you
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