Answer / aannie

A generation data set is one of a collection of
successive, historically related, cataloged data sets,
known as a generation data group (GDG). Each data set
within a generation data group is called a generation data
set (GDS) or generation.
? Processing Generation Data Groups
? Absolute Generation and Version Numbers
? An absolute generation and version number is used
to identify a specific generation of a generation data
group.
? The generation and version numbers are in the
form GxxxxVyy, where xxxx is an unsigned 4-digit decimal
generation number (0001 through 9999) and yy is an unsigned
2-digit decimal version number (00 through 99)
? Relative Generation Number
As an alternative to using absolute generation and
version numbers when cataloging or referring to a
generation, we can use a relative generation number.
For example, A.B.C(-1). A.B.C(+1), or A.B.C(0).

Answer / jegadeesan ramu

Used to keep track of the records in chronological order to
create gdg base name must be created by using IBM utility
IDCAMS

Answer / dhan

Generation Data Groups (GDGs) are a group of datasets related to each other by a common name.
GDG generation file is referred by a GDG base name.
Each generation data set is distinguished by others by the generation number.

https://youtu.be/hMbB20WKmBg
https://youtu.be/3N17dh7BAaQ

Answer / ks

It is nothing but Generation data group keeps the track of
the new generations by deleting the older ones based on the
options

WORKING-STORAGE SECTION. 1 GROUP-ITEM. 05 AMOUNT-1 PIC 99V9 USAGE COMP VALUE 50. 05 AMOUNT-2 PIC 9(4)V99 USAGE COMP. PROCEDURE DIVISION. MOVE ZERO TO GROUP-ITEM. ADD 50 TO AMOUNT-1. DISPLAY AMOUNT-1. STOP RUN.

1 Answers  

---

how to allocate a dynamic dataset in jcl ?

3 Answers   Patni, TCS,

---

At what stage, operator can change the class and priority of a submitted job?

2 Answers  

---

Hi, My dataset have multiple records, say 100. I want to start copy records only after a record contain a specific value that may be in a specific position. Secondly I want to stop copying rest records if certain record contains a specific value. Can it be done using SORT/ICETOOL utilities?

5 Answers   Patni,

---

I found in one of the jcl, gdg version being mentioned as : abc.def.ghi(-0) Can anyone tell me how referring the version as (-0) is different from referring it as (0)

2 Answers  

---

What is jcl in mainframe, and how many types of jcl statements are there for a job?

0 Answers  

---

hi guys what r the diff types of procs in jcl? bye ramya

4 Answers   ACS, Keane India Ltd,

---

List some valid operation codes in JCL

3 Answers  

---

What does the statements: typrun=scan and typrun=hold do in a JCL statement

2 Answers  

---

Hi, I have 3 files say file A , file B and file C.I want to form an output file in which i will have all the records from file A. Files B and C also may contain records that are present in file A.I want those records also to be included in my output file. for eg: file A contains: 1 2 3 file B contains: 2 4 5 file C contains: 1 3 5 So in my output file should look like: 1 2 3 2 1 3 Can any one help ???.....thanks in advance.

2 Answers  

---

We have an output dataset in job with disp parameter as SHR. Can we write data in that file dataset?

2 Answers   CTS, IBM,

---

In job processing, what happens in conversion stage?

0 Answers  

---