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Date Logic

 
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SK2007
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Joined: 25 Jan 2007
Posts: 40
Topics: 17
PostPosted: Thu Feb 07, 2008 11:15 am    Post subject: Date Logic Reply with quote
Hi,

Please help me in the following requirement.
The requirement is take system date, and add 6 days to that date.
If it rolls over to next month, then add 2 to the system month otherwise add 1 to the system month. I need this to be done in SORT

For ex:
If the system run date is 12/25/2007.
The out put date would be : 01/25/2008. Because the date is 12/31/2007 after adding 6 days.

If the system run date is 12/26/2007.
The out put date would be : 02/25/2008. Because the date rolls over to next month.


Thanks for your kelp as always.
SK2007.
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Frank Yaeger
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PostPosted: Thu Feb 07, 2008 1:35 pm    Post subject: Reply with quote
Quote:
If the system run date is 12/26/2007.
The out put date would be : 02/25/2008. Because the date rolls over to next month.


Shouldn't the output date be 02/26/2008? Why would the day change from 26 to 25?

Here's a DFSORT job that I think will do what you asked for:

Code:

//S1    EXEC  PGM=ICEMAN                                 
//SYSOUT    DD  SYSOUT=*                                 
//SORTIN DD *                                           
RECORD                                                   
/*
//SORTOUT DD SYSOUT=*                                   
//SYSIN    DD    *                                       
  OPTION COPY                                           
  INREC IFOUTLEN=10,                                     
    IFTHEN=(WHEN=INIT,BUILD=(DATE1(/),DATE1,DATE1+6)),   
    IFTHEN=(WHEN=INIT,BUILD=(6,5,C'/',1,4,11,16)),       
    IFTHEN=(WHEN=(15,2,ZD,EQ,23,2,ZD),                   
      OVERLAY=(1,2,ZD,ADD,+1,EDIT=(TT)),HIT=NEXT),       
    IFTHEN=(WHEN=(15,2,ZD,NE,23,2,ZD),                   
      OVERLAY=(1,2,ZD,ADD,+2,EDIT=(TT)),HIT=NEXT),       
    IFTHEN=(WHEN=(1,2,ZD,EQ,+13),                       
      OVERLAY=(C'01',7:7,4,ZD,ADD,+1,EDIT=(TTTT))),     
    IFTHEN=(WHEN=(1,2,ZD,EQ,+14),                       
      OVERLAY=(C'02',7:7,4,ZD,ADD,+1,EDIT=(TTTT)))       
/*


For today's date (02/07/2008), SORTOUT would have:

03/07/2008

For 12/25/2007, SORTOUT would have

01/25/2008

For 12/26/2007, SORTOUT would have

02/26/2008
_________________
Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
www.ibm.com/storage/dfsort
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SK2007
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Posts: 40
Topics: 17
PostPosted: Thu Feb 07, 2008 2:20 pm    Post subject: Reply with quote
Thanks Frank,

Yes, it should be 02/26/2008. Thanks for your help.
I also tried with the follwoing code and got the result. Please let me know if you see any problem.

Code:

//S1       EXEC PGM=SORT                                 
//SYSOUT   DD SYSOUT=*                                   
//SORTIN   DD *                                           
JUST A DUMMY RECORD                                       
/*                                                       
//SORTOUT  DD SYSOUT=*                                   
//SORTWK01 DD UNIT=WRKDA,SPACE=(CYL,(400,100))           
//SYSIN    DD *                                           
 INREC FIELDS=(DATE1(/)+6)                               
 SORT FIELDS=COPY                                         
 OUTREC FIELDS=(1,4,                                     
                C'/',                                     
                6,2,ZD,ADD,+1,EDIT=(TT),                 
                C'/',                                     
                9,2,                                     
                6,2,CHANGE=(1,C'13',C'1'),NOMATCH=(C'0'))
 OUTFIL FNAMES=SORTOUT,                                   
        OUTREC=(1,4,ZD,ADD,11,1,ZD,EDIT=(TTTT),           
                C'/',                                     
                6,2,CHANGE=(2,C'13',C'01'),NOMATCH=(6,2),
                C'/',                                     
                9,2)   
/*                     
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Frank Yaeger
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PostPosted: Thu Feb 07, 2008 3:30 pm    Post subject: Reply with quote
Your job doesn't appear to give you the output you said you wanted. For example, for 12/25/2007 you said you wanted 01/25/2008. That's what my job gives you. But it appears your job gives you 2007/01/31.
_________________
Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
www.ibm.com/storage/dfsort
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kolusu
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PostPosted: Thu Feb 07, 2008 3:57 pm    Post subject: Reply with quote
SK2007,

Also be aware of getting an invalid date if it is a leap year. For ex : if you are running the job on Jan 24 of 2008 and you add 6 days to it , it is Jan 30th and now you add 1 month to it which makes it feb 30th 2008 which is an invalid date.
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SK2007
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PostPosted: Fri Feb 08, 2008 8:01 am    Post subject: Reply with quote
Thanks Frank and Kolusu for your suggestions and observations.

SK2007.
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kolusu
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PostPosted: Mon Oct 25, 2010 5:25 pm    Post subject: Reply with quote
SK2007,

With PTF UK90025 for z/OS DFSORT V1R10 and PTF UK90026 for z/OS DFSORT V1R12(Oct, 2010), DFSORT now supports date arithmetic which can add/subtract days, months or years to a given date like shown below.

Code:

//STEP0100 EXEC PGM=SORT                                         
//SYSOUT   DD SYSOUT=*                                           
//SORTIN   DD *                                                   
DUMMY RECORD                                                     
//SORTOUT  DD SYSOUT=*                                           
//SYSIN    DD *                                                   
  SORT FIELDS=COPY                                               
  INREC IFTHEN=(WHEN=INIT,BUILD=(DATE1)),                         
  IFTHEN=(WHEN=INIT,OVERLAY=(10:1,8,Y4T,ADDDAYS,+6,TOGREG=Y4T)), 
  IFTHEN=(WHEN=(5,2,CH,EQ,14,2,CH),                               
  BUILD=(1,8,Y4T,ADDMONS,+1,TOGREG=Y4W(/))),                     
  IFTHEN=(WHEN=NONE,                                             
  BUILD=(1,8,Y4T,ADDMONS,+2,TOGREG=Y4W(/)))                       
//*



For complete details of date arithmetic functions and other new functions see "User Guide for DFSORT PTFs UK90025 and UK90026" paper (sortugph.pdf) at:

http://www.ibm.com/support/docview.wss?rs=114&uid=isg3T7000242
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