JCL Interview Questions

Can anyone tell me how to create first member in a PDS dataset????

No, We cant create PDS member by using 3.2 option...

by using this option we create only PDS i.e directory blocks....

We use 3.4 option we create pds members in ISPF panel........

JES2 processing is considered to be independently controlled.
JES3 processing is considered to be centrally controlled..

JES2 allocates dataset required by the step just before
the step executes.

JES3 allocates datasets for all the step before scheduling the job.

CLASS parameter specifies weather it is a long or short running job,,, it has a range of A-Z, 0-9 A-------1MIN B-------5MIN .. MSGCLASS specifies the output device to which the messages are sent it ca...

If u dont want 99 steps and want only step100 (and remaining if its not last step) to execute give in job card of JCL as RESTART.PROCNAME=STEP100. This will automatically skip 99 steps and start the PROC from 100th step

One simple way to execute the 100th step only is to use the utility IEBEDIT.Syntax is as follows: .......

Code
//SYSIN DD *
  EDIT START=<user id>,TYPE=INCLUDE,STEPNAME=(STEP=100)
//

It is used for creating as well as deleting the datasets, it should be the first step in the jcl to delete the duplicate datasets which were created by the last job run and which was failed due to some abend..

It is used for creating new dataset with JCL.

The main difference between PS and PDS is were we can store data in a single file in PS and where as in PDS we can store data in multiple files which we also called as members. Yes PS file is almost e...

PS: PS is also called as FLAT file ,/ Sequential file, it is something similar to our notepad file in our windows environment PS is used to store data , that is almost all the input/output file are P...

By using eibedit utility we can do it.

You can do it with IEBEDIT utility only. I would believe that DPRTY in the STEP will not serve this purpose. DPRTY coded on the step level is just ignored. DPRTY is a very old JCL keyword that wa...

To run an DB2 program,. 1) in Job card changes (to specify which db2 environment to be connected) --> Add SCHENV=DB2 keyword, DB21-> db2 env , your db2 admin/ PM will provide this {geshibot langu...

You have to write a JCL to run a cobol-db2 program. Can you please give your JCL if you need any changes.

Whether it simple Cobol program or an COBOL-DB2 program. passing PARM value & reading it with in program is same for both. - We have to define an variable for PARM in linkage section - LINKAGE SECTI...

Linkage variable. to load parm values, COBOL procedure division defined with USING LINK-VARIABLE

JCL: JCL is a language, We write JOBs in JCL laguage that is understood by Mainframe and job is executed, space allocations & other resource allocation is done according to the keywords specified by ...

JCL: is Job control Language.Through jcl we can decide what job has to be run what programs needs to be run.
JES: Job entry System : This will take care of the execution of the job . when a job is submitted it will allocate space for execution and will help in execution

using LABEL parameter RETPD(retention period)/EXPDT(expire date)

LABEL=EXPDT=12120(dataset expire on 120th day of 2012)
LABEL=RETPD=200(dataset is retained for 200 days)

FOR(3)

SYSPRINT: Default output dataset for Printable output.

SYSOUT: Default output dataset for System messages.



thanks,
Sivakumar

SYSOUT and SYSPRINT are pre-defined copybooks which are developed in COBOL, SYSOUT is used to mention the location where we need to print the message If mention SYSOUT=* then message message passed t...

Positional Parameters are:- a).Sequence predetermined b) Parameters separated by commas c) Omitted parameters must be indicated by two consecutive commas. d) Installation dependent EX: //JOBNAME J...

positional parameters are mentioned by their positions and they came before keyword parameters... positional parameters have only locations.. keyword parameters have keyword , equal sign(=) and information..

"cobol //********************************************************************* //* CREATE GDG BASE //********************************************************************* //* //GDG...

UNIT=SYSDA refers to the next available disk storage device.

SYSDA= SYSTEM DIRECT ACCESS

In the SPACE=(type of space,(PRIMARY SPACE, SECONDARY SPACE, DIRECTORY BLOCKS))

Can be codded like this SPACE =(TRKS,(20,20,12))

using IEFBR14 we can create pds with jcl.//TZZZ84R JOB NOTIFY=&SYSUID,MSGCLASS=X //STEP01 EXEC PGM=IEFBR14 //DD1 DD DSN=TKOL084.DEMO,DI...

SYSPRINT-to print the utility messages in spool

SYSOUT-identifies the system output datasets,which are in
printed or punched format.

SYSPRINT - when there is message from the utility.Say in ur jcl u have used sort.so all the sort related information will be available in SYSPRINT.

SYSOUT - Its to display the messages which is available in our coding. say display statements of cobol will be displayed in sysout

either through parm parameter or sysin dd*

I think there is also a register item called return code which can be accessed from both JCL and cobol, so we can some values through this variable as well.


Correct me if wrong.

By COND operator and IF THEN ELSE , condition can be specified in JCL

When we use conditional statements if the condition
specified is true then step bypassed, and if you use if and else statements then condition specified is true then step is
executed.