MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

There is one QSAM is the VB file. i want to get the first characters in this file and change those characters from'abcd' to '1234' and creat a vasm file to put '1234' in it. how to do in only JCL. if it not QSAM, it's VASM and VB. how to do it.

IBM,

1 6021

Can we copy Vsam files from a Vsam file in Iebgener step?

iGate, Tech Mahindra,

4 15839

How to point my proc to production dataset always though i keep jcllib order=development.dataset? Is it possible?

3 7098

If login Screen has been modified by adding current date to be displayed. What Step to be followed to Keep that date as Current date Note: If no steps taken then it will display only the compilation date

BridgeStone,

2 6793

what u mean by csrloc and rtncsrloc in rpgIV in as/400.Give an eg? to do...give some coding...what is row no and column no ???..if possible...give a no of lines coding....please

CTS,

4449

Mainframes gets a text file that contains the name of the file. Now using JCL i want to locate that file name in the mainframe system and perform further processing. Please tell how to proceed

2564

I need to compare two VSAm files. In input VSAM file some fields are updating and the updated feilds are coming into the output file. now i need to compare these two files with respect to a perticular field. Please suggest a suitable JCL code me.

Cognizant, Wipro,

2 19940

One dataset is creating in the step1 with LRECL of 133 and the same dataset is used in the next step in DISP=SHR mode, but while scanning the JCL the following error is thrwon. Please verify the below JCL $/SEPP030.PROVIDER DD DSN=Z1225BT.F5750PG9.F5910PRV.QC#A6868 //ERRORRPT DD DSN=F5910&ST&IN..F5910EPP.ERRORRPT.P&CYCDATE, --ERRORRPT DD DSN=F5910PG.F5910EPP.ERRORRPT.P, // DISP=&DISNCD,UNIT=&DELQ, -- DISP= (NEW,CATLG,DELETE),UNIT=DELQ, // SPACE=(TRK, (30,15),RLSE), // DCB=&DCB2 -- DCB= (PPG.METMODEL,BLKSIZE=0,LRECL=133,RECFM=FB) $/SEPP030.ERRORRPT DD DSN=Z1225BT.F5910EPP.ERRORRPT.AOUTPUT //SEPP040 EXEC PGM=FILEAID,COND= (0002,EQ,SEPP030) //SYSPRINT DD SYSOUT=* //SYSLIST DD SYSOUT=* //DD01 DD DSN=SYSCMN.PROD.CCLIB (F5910EP1),DISP=SHR $/SEPP040.DD01 DD DSN=Z1225BT.TEST.CCLIB (F5910EP1) E1 - DSS20791E - DATA SET 'Z1225BT.F5910EPP.ERRORRPT.AOUTPUT' HAS AN LRECL OF 133 COULD NOT BE OPENED BECAUSE THE CODED LRECL WAS 80. // DD DSN=F5910&ST&IN..F5910EPP.ERRORRPT.P&CYCDATE, -- DD DSN=F5910PG.F5910EPP.ERRORRPT.P, // DISP=SHR $/ DD DSN=Z1225BT.F5910EPP.ERRORRPT.AOUTPUT please find the error code in the above mentioned lines and please suggest me about the error and the solution for that.

Cognizant,

3 12903

can u plz expain me how to declare dynamic array? what is the meaning of depending on clause in dynamic array?

IBM, Satyam,

3 14923

WHAT WILL HAPPEN IF WE DROP THE BASE REGISTER IN THE PGM WHICH CONTAINS ONLY ONE BASEREG?

IBM, Tech Mahindra,

4 10704

How we can Pass the parameters from JCL to assembler Pgm?

Tech Mahindra,

4 15983

How we can retrieve the instream data in SYSIN ?

Tech Mahindra,

2 8812

There are two steps in a JCl, the first one generates a report while the second step send an email saying the report has been generated, but the second steps should only be executed when the report file is non-empty. How can it be acheived. We may include steps in between.

IBM,

3 13056

Can anybody tell why Journalling is compulsary before Commitment Control?

2 7778

Why we create the Physical File Member?

5 17324

Un-Answered Questions { MainFrame }

What are the rules for db2 programming?

1089

Hi,Can any body give the code for the below mentioned quetion.?Im trying to get coding in with easily inderstanding.Plese give me the coding for this? 1.How would you achieve this requirement with out using RPG/RPGLE pgm,but by using only CL?Read a database file and display file contents on the screen when enter key pressed the next record should be displayed on screen.When the last record is reached or when F3 key is pressed the program should exit if the file is empty,a message should be displayed indicate that there are no records to display. Database file Name=EMPDBF Fields in EMPDBF to be displayed on screen Employee Number- EMPNUM(5,0) Employee Name- EMPNAM(30,A) Employee Address-EMP ADDR(50 A)

2203

Hello, I have 3 years of exp as a mainframes tester in a leading IT company, now am looking to change my company. Could you please let me know, what are the interview questions/topics i should prepare. Your suggestions are truly valuable for me :) Thanks !!

1942

how will you display a particular page in subfile ?

1695

What is data manager?

1049

what is the role of the cursor in db2?

1069

When The Define Jcl Is Not Available, How Can You Get Information About A Vsam File's Organisation ?

1225

What is the usage of comp fields in cobol?

1188

What is the main function of key-sequenced data set?

1025

What is the meaning concurrency in the db2 database?

1110

List out the three types of page locks that can be held.

1149

define the purpose of the *cat function?

1673

how to read database records without locking them?

1844

What is the difference between iter and do?

1209

when would you prefer logical file than opnqryf?

2448

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