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Question on Date Manipulation in cobol

 
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Piyari

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Joined: 19 Nov 2007
Posts: 4
Location: India

PostPosted: Mon Nov 19, 2007 11:43 am    Post subject: Question on Date Manipulation in cobol
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Hi,

I have a requirement to see if a particular date falls within 3 years from the current date.

My input date is in CYYMMDD format. (eg, 3031201). We need to check if this date falls within 3 years from the Current date.

Pls share your thoughts on how best this could be accompolished.

Our installation uses VS COBOL II.
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murmohk1

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Joined: 29 Jun 2006
Posts: 1439
Location: Bangalore,India

PostPosted: Mon Nov 19, 2007 11:56 am    Post subject:
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Piyari,

Quote:
My input date is in CYYMMDD format. (eg, 3031201).


Generally the value of 'C' is taken either 0 (for 19XX years) or 1 (for 20XX).

How did you get 3?
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Aaru

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Joined: 03 Jul 2007
Posts: 1288
Location: Chennai, India

PostPosted: Mon Nov 19, 2007 12:40 pm    Post subject: Reply to: Question on Date Manipulation in cobol
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Piyari,

Welcome to the forums.

Quote:
Pls share your thoughts on how best this could be accompolished.


It can be done using SORT. Also search the DFSORT forum for similar topics. . Try this JCL and change the same as per your requirement.

Code:
//S1    EXEC  PGM=ICEMAN                                             
//SYSOUT    DD  SYSOUT=*                                             
//SORTIN DD *                                                         
RECORD                                                               
/*                                                                   
//SORTOUT DD DSN=&&S1,UNIT=SYSDA,SPACE=(TRK,(1,1)),DISP=(,PASS)       
//SYSIN    DD    *                                                   
  OPTION COPY                                                         
  INREC OVERLAY=(21:DATE1,                                           
    1:C'YEAR,''',23,2,ZD,SUB,+3,EDIT=(TT),25,4,C'''',21:60X)         
/*                                                                   
//S2    EXEC  PGM=ICEMAN                                         
//SYSOUT    DD  SYSOUT=*                                         
//SYMNAMES DD DSN=&&S1,DISP=(OLD,PASS)                           
//SORTIN DD *                                                     
1031115                                                           
1051119                                                           
1061119                                                           
1071119                                                           
1031115                                                           
1041119                                                           
/*                                                               
//SORTOUT DD SYSOUT=*                                             
//SYSIN    DD    *                                               
  OPTION COPY                                                     
  INCLUDE COND=(2,6,CH,GE,YEAR)                                   
/*                                                               


output:

Code:
1051119                                             
1061119                                             
1071119                                             
1041119                                             
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Piyari

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Joined: 19 Nov 2007
Posts: 4
Location: India

PostPosted: Fri Nov 23, 2007 12:55 pm    Post subject: Reply to: Question on Date Manipulation in cobol
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Murali,

Answering your question, our programs have been coded in a such a way that '2' corresponds to 19XX years & ' 3' corresponds to 20XX years.

Aaru,

Thanks for your suggestion. I accompolished it with cobol logic itself.

First i converted the input date to YYYYMMDD format.
Then i subtracted 3 years from the Current date and checked if input date was greater than that.

Since the number of input records in the input file is not huge,this should do the trick for me!
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murmohk1

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Joined: 29 Jun 2006
Posts: 1439
Location: Bangalore,India

PostPosted: Fri Nov 23, 2007 12:59 pm    Post subject:
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Piyari,

Good you got your req.

Also its very pleasing to know, you dint forget to reply back and following the post even after a week.
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Tue Nov 27, 2007 11:41 pm    Post subject:
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Hi Piyari,


I don't know the full reqs of your problem, but did you account for leap year?
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