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Generation Data Groups

 
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ibmprofessional
Beginner


Joined: 23 Mar 2003
Posts: 2
Topics: 2
PostPosted: Sun Mar 23, 2003 2:07 am    Post subject: Generation Data Groups Reply with quote
Hi all,

Is GDG applicable only to vsam dataset or can it be applied even to non vsam datasets ..Kindly explain.


with regards,
ARV
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12376
Topics: 75
Location: San Jose
PostPosted: Sun Mar 23, 2003 8:08 am    Post subject: Reply with quote
ibmprofessional,

GDG's are not applicable to VSAM datasets.Check this link for a detailed explanation of GDG'S

http://www.woodfibre.frbc.gov.bc.ca/~smshelp/gdg.htm


Hope this helps...

cheers

kolusu
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Premkumar
Moderator


Joined: 28 Nov 2002
Posts: 77
Topics: 7
Location: Chennai, India
PostPosted: Sun Mar 23, 2003 11:26 pm    Post subject: Reply with quote
To add to the info on that link, GDGs can be PDS too.
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raj051076
Beginner


Joined: 05 Dec 2002
Posts: 64
Topics: 21
PostPosted: Sat Mar 29, 2003 1:42 pm    Post subject: Reply with quote
Prem how can I define a GDG to use it as a PDS...DO u have an example..Thanks in advance
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Rajib
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Premkumar
Moderator


Joined: 28 Nov 2002
Posts: 77
Topics: 7
Location: Chennai, India
PostPosted: Mon Mar 31, 2003 6:07 am    Post subject: Reply with quote
Rajib,

Define the PDS-GDG base as you do for PS-GDG base.
Code:

//STEP01    EXEC PGM=IDCAMS       
//SYSIN     DD   *               
    DEFINE GENERATIONDATAGROUP - 
    (NAME(FDR5618.TEST.PDS.GDG) -
     LIMIT(5) -                   
     NOEMPTY -                   
     NOSCRATCH -                 
    )                             
//SYSPRINT  DD   SYSOUT=*         


Create the PDS generations as you do for normal PDS.
Code:

//STEP02    EXEC PGM=IEFBR14                 
//PDSGDG    DD   DISP=(,CATLG,DELETE),       
//          UNIT=SYSDA,SPACE=(TRK,(4,1,2),RLSE),
//          LRECL=80,RECFM=FB,                 
//          DSN=FDR5618.TEST.PDS.GDG(+1)     
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Bill Dennis
Advanced


Joined: 03 Dec 2002
Posts: 579
Topics: 1
Location: Iowa, USA
PostPosted: Mon Mar 31, 2003 8:42 am    Post subject: Reply with quote
I had to try the PDS GDG for myself. You cannot specifiy BOTH a member name and a relative GDG number at the same time. However the DSN=GDG.BASE.G0001V00(member) seem to work OK. Way to go, premukmar!

Bill
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