Answer / guest

For an output file DUMMY specifies that the output is to be
discarded. For input it specifies that the file is empty.

Answer / srinivas pogula

Dummy statements are do nothing statments once control
encounters this, operating system treats it as end of
file .... and it does for testing purpose, once the testing
is done and if it executes successfully ,then dummy is
repalced by dataset name what we require for that program
that

Answer / mani

For an output file DUMMY specifies that the output is to be
discarded. For input it specifies that the file is empty.

Answer / sankarikumar

//sysin dd dummy

dummy- statements are not actually executed, used for
testing environment

What does a disposition of (NEW,CATLG,KEEP) mean?

1 Answers   Cap Gemini,

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1) max no of steps with jcl job can execute 2) how many extentions r possible in sequencial files with job 3) what is set parameter will do 4)how to get syntax errors without sub 5) what is differ between error and abend 6) hw mvs knows who submitted the job and whoom it has to forward 7) what are the positinal parameters of data descripter

1 Answers   L&T,

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how to execute the last 5 steps in jcl

2 Answers   Syntel,

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i) Difference between ps, esds, ii) Difference between lrecl, blksize among PS, PDS issues? i.e in jcl at dcb

2 Answers  

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what if any ,is the syntax error in the following piece of code 01 B PIC A(7) 02 C PIC 9(4) ........ IF(B NUMERIC) ADD 10 TO C a.the condition in the if statement is wrong b.noting is wrong c.because C is initialised.ADD 10 TO C is wrong d.both B and C shoud have same size.

1 Answers  

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A statement about PROCs is " In PROCs, Symbolic Parameters can be assigned on PROC and EXEC", BUT On which EXEC, (i) On the JCL's EXEC which is calling to PROC1. (Inside JCL, EXEC PROC1) (ii) or On the PROC's EXEC where it calls the PGM1. (Inside PROC, EXEC PGM=PGM1)

2 Answers   IBM,

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What is timing concept in mainframe?

0 Answers  

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How does -818 sql error occur? Why does it happen and what can be done to overcome this error code?

5 Answers   RBS,

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can we have more than one job in a single job card that is we are specifying only one 'job' statement in the jcl.

7 Answers   Accenture,

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How is a GDG base created?

5 Answers  

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i have a file which contains duplicates ? my requirement is to eliminate duplicates and these elminated duplicates should be moved to another file can any code this using sort ?

3 Answers   IBM,

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Can I copy the FB (fixed Block) record length file to a VB (variable Block)record length file and Vise Versa? If Yes then how ? is that thru one of the JCL utility ?

3 Answers  

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