Answer / guest

GDG - group of dataset that are logically or chronologically
related, referred by name and a relative generation number -
an integer which identifies the generation of a dataset and
is coded in parentheses after dataset name. Absolute GDG
name - GxxxxVyy, where xxxx-absolute gen. number, yy-version
number. Can be sequential, direct, partitioned. (VSAM - no).
Must always be cataloged. Advantage - all datasets have the
same name and system keeps track of adding new and retaining
previous generations and deleting oldest successive
generation. To create a GDG we create a GDG index in the
system catalog with IDCAMS utility and then a model
(prototype, DSCB) on the same volume to supply DCB
information. Empty - when limit is reached all members are
removed from the index, otherwise-only oldest.
Scratch-removed members are uncataloged & deleted, otherwise
- removed & uncataloged, but remain in the system (not
members of GDG any more). GDG number is updated at the end
of the job. If number is not specified all generations will
be processed from the beginning

when can a job time-out occur? How to overcome that?

0 Answers   IBM,

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how many members can be created inside a single pds?

8 Answers  

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what is the difference between static call and dynamic call?

1 Answers  

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What is the function of the dd mgmtclas keyword in sms datasets?

0 Answers  

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Suppose we have 5 steps in a job.No step should be executed After submitting every step in a job

2 Answers   AVB, IBM,

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How gdg are concatenated?

0 Answers  

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what are the ways of passing data to a cobol program from jcl?

1 Answers   IBM,

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I have 5 steps in my job. say s1, s2, s3, s4, s5 //s1 exec ............. //s2 exec ............ //s3 exec .......... //s4 exec ........ //s5 exec ............... my question is i want to exeute only s2 and s4 steps... please advice me how to do this:

4 Answers   ITC Infotech, TCS,

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In DCB, what is LRECL,BLKSIZE,DSORG

1 Answers   TCS,

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What is the error code SOC01 indicate ?

5 Answers   Microsoft,

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in ways data can be passed to a COBOL program from JCL?

0 Answers  

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I have DATE filed like DD-MM-YYYY, So I want output should be MM/DD/YYYY using JCL? Can anybody post the answer for above requirement?

4 Answers   BirlaSoft, FIS, Wipro,

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