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to get weekday for a date from input file

 
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Sathish Gurumoorthy

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Joined: 12 Feb 2009
Posts: 33
Location: Chennai, India

PostPosted: Mon Jul 13, 2009 6:23 pm    Post subject: to get weekday for a date from input file
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Hi,

i have an input file like below. the input file can contain any no of such records with different dates

Code:
07-13-2009


the date is in format MM-DD-YYYY

i want the output as below

Code:
07-13-2009 2


Here 2 indicates the 2nd day (i.e monday) of the week.
the output can look like below too

Code:
07-13-2009 MON
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rgupta71

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Joined: 21 Jun 2009
Posts: 160
Location: Indore

PostPosted: Mon Jul 13, 2009 7:11 pm    Post subject:
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Hi Sathish,

You can try the below code


SORT FIELDS=COPY
OUTREC FIELDS=(1:1,10,X,
11:11,1,CHANGE=(3,C'2',C'MON',
C'3',C'TUE'),
C'4',C'WED'),
C'5',C'THU'),
C'6',C'FRI'),
C'7',C'SAT'),
C'1',C'SUN'),
NOMATCH=(C'N/A'))

I haven't tried this on mainframe but hope it will work.

Please let me know if it doesn't work.

Thanks And Regards
Rahul Gupta
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Skolusu

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Joined: 07 Dec 2007
Posts: 2205
Location: San Jose

PostPosted: Mon Jul 13, 2009 10:13 pm    Post subject:
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Sathish Gurumoorthy,

Sort products do not have the ability to produce the day of week from a given date. However with a bunch of IFTHEN statements we can get the day of the week. In order to help you with that I need to know the LRECL and RECFM of the input dataset along with the position and format of the date field.

Rgupta71,

Please read the question once again and try to answer the question. If you can't test your solution please do NOT post the solution. Satish does NOT have the numerical value of the day of the week in the input. He just have a date field and he needs it to be converted to a numerical number which represents the day of the week or literal name of the day of week.
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Sathish Gurumoorthy

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Joined: 12 Feb 2009
Posts: 33
Location: Chennai, India

PostPosted: Tue Jul 14, 2009 10:05 am    Post subject:
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Skolusu,

LRECL of the input file is 254 and RECFM is FB. The date field YYYYMMDD starts at 19th position in the input file and it's format is BINARY 9
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Skolusu

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Joined: 07 Dec 2007
Posts: 2205
Location: San Jose

PostPosted: Tue Jul 14, 2009 9:13 pm    Post subject:
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Sathish Gurumoorthy,

The following JCL will give you the desired results. I did not do any do any kind of date validation as I assumed that your input has valid dates in CCYYMMDD format in 4 byte binary field at pos 19 in your input.

Code:

//STEP0100 EXEC PGM=SORT                   
//SYSOUT   DD SYSOUT=*                     
//SORTIN   DD DSN=Your input FB 254 byte file,DISP=SHR           
//SORTOUT  DD SYSOUT=*                     
//SYSIN    DD *                           
  OPTION COPY,NOSZERO                                                 
  INREC IFTHEN=(WHEN=INIT,BUILD=(19,4,BI,ZD,LENGTH=8)),               
  IFTHEN=(WHEN=(5,2,ZD,LT,3),OVERLAY=(9:1,4,ZD,SUB,+1,EDIT=(TTTT),     
  13:5,2,ZD,ADD,+10,EDIT=(TT),15:9,4,ZD,DIV,+100,EDIT=(TTTT),         
  19:9,4,ZD,MOD,+100,EDIT=(TT))),                                     
  IFTHEN=(WHEN=(5,2,ZD,GE,3),OVERLAY=(9:1,4,                           
  13:5,2,ZD,SUB,+2,EDIT=(TT),15:9,4,ZD,DIV,+100,EDIT=(TTTT),           
  19:9,4,ZD,MOD,+100,EDIT=(TT)))                                       
  OUTREC IFTHEN=(WHEN=INIT,                                           
  OVERLAY=(21:((+26,MUL,13,2,ZD),SUB,+2),DIV,+10,M11,LENGTH=8)),       
  IFTHEN=(WHEN=INIT,                                                   
  OVERLAY=(29:21,8,ZD,ADD,7,2,ZD,ADD,19,2,ZD,M11,LENGTH=8)),           
  IFTHEN=(WHEN=INIT,                                                   
  OVERLAY=(37:29,8,ZD,ADD,(19,2,ZD,DIV,+4),ADD,(15,4,ZD,DIV,+4),       
           M11,LENGTH=8)),                                             
  IFTHEN=(WHEN=INIT,                                                   
  OVERLAY=(45:(37,8,ZD,SUB,(+2,MUL,15,4,ZD)),MOD,+7,LENGTH=8)),       
  IFTHEN=(WHEN=(45,8,SFF,LT,0),OVERLAY=(53:+7,ADD,45,8,SFF,EDIT=(T))),
  IFTHEN=(WHEN=(45,8,SFF,GT,0),OVERLAY=(53:45,8,SFF,EDIT=(T)))         
  OUTFIL IFOUTLEN=20,                                                 
  IFTHEN=(WHEN=INIT,BUILD=(1,4,C'-',5,2,C'-',7,2,53,1)),               
  IFTHEN=(WHEN=(11,1,ZD,EQ,0),OVERLAY=(11:C' SUNDAY   ')),             
  IFTHEN=(WHEN=(11,1,ZD,EQ,1),OVERLAY=(11:C' MONDAY   ')),             
  IFTHEN=(WHEN=(11,1,ZD,EQ,2),OVERLAY=(11:C' TUESDAY  ')),             
  IFTHEN=(WHEN=(11,1,ZD,EQ,3),OVERLAY=(11:C' WEDNESDAY')),             
  IFTHEN=(WHEN=(11,1,ZD,EQ,4),OVERLAY=(11:C' THURSDAY ')),             
  IFTHEN=(WHEN=(11,1,ZD,EQ,5),OVERLAY=(11:C' FRIDAY   ')),             
  IFTHEN=(WHEN=(11,1,ZD,EQ,6),OVERLAY=(11:C' SATURDAY '))             
/*


The output will be of this format

Code:

2008-03-01 SATURDAY   
2008-02-28 THURSDAY   
2009-02-28 SATURDAY   
2009-07-13 MONDAY     
2009-07-14 TUESDAY   
2009-07-15 WEDNESDAY 
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Sathish Gurumoorthy

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Joined: 12 Feb 2009
Posts: 33
Location: Chennai, India

PostPosted: Wed Jul 15, 2009 5:07 pm    Post subject:
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Thanks Skolusu icon_smile.gif
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Skolusu

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Joined: 07 Dec 2007
Posts: 2205
Location: San Jose

PostPosted: Tue Nov 17, 2009 4:43 am    Post subject:
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Sathish Gurumoorthy

With z/OS DFSORT V1R5 PTF UK51706 or z/OS DFSORT V1R10 PTF UK51707, you can use the new date conversion function WEEKDAY like shown below to get the desired results . This job also validates the dates. If an invalid date is found then the output will have asterisks
Code:

//STEP0100 EXEC PGM=SORT                   
//SYSOUT   DD SYSOUT=*                     
//SORTIN   DD DSN=Your input FB 254 byte file,DISP=SHR           
//SORTOUT  DD SYSOUT=*                     
//SYSIN    DD *         
  OPTION COPY                                           
  INREC IFTHEN=(WHEN=INIT,BUILD=(19,4,BI,ZD,LENGTH=8)), 
  IFTHEN=(WHEN=INIT,BUILD=(1,8,Y4T,TOGREG=Y4T(-),X,     
                           1,8,Y4T,WEEKDAY=CHAR9))       
//*


For complete details on date conversion functions and the other new functions available with the Nov, 2009 DFSORT PTF, see:

http://www.ibm.com/support/docview.wss?rs=114&uid=isg3T7000174
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