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

What is the difference between joblib and jcllib statements

7 36339

what do you mean by copybook? and what is the difference between the copybook which we are using in working storage and procedure division.

HCL, TCS,

3 25656

can we use cl programming to update or delete physical files

12 50114

Hi All I've got an appointment for my visa interview. I'm confused seeing all the postings I'm currently working in IBM Bangalore, i've got just 3+ years of realtime experience in this field. I've completed my Bachelore of Computer Applications and then Master of Information Systems....and with good percentages... I've seen many posting who's visa got rejected even for 4+years of IT experience VO's asking for 6+ years of exp. I'm afraid...is my exp and background sufficient to get throug the interview and get visa stamped. I'ld be more happy if you can help me in this reg. waiting for reply Smitha

2 4885

A maximum of 100 chars can be passed to Cobol through Parm in JCL, If we want to pass more than 100 Chars how we can do it ?

IBM,

3 12143

A maximum of 100 chars can be passed to Cobol through Parm in JCL, If we want to pass more than 100 Chars how we can do it ?

IBM,

4 14536

Hi friends.. i want to be a IBM MainFrame Professional.. can any body tell me what is requirement for that... i m just BA, MA, and have simple diploma in Computers. what is pre-requisite.

3 6634

I have one column say 'X' defined as VARCHAR Can anyone tell me What are the different ways to update this column thru COBOL-DB2 program?

5 16850

I have one GDG. Everyday One new version is being created.Now I want to split this created version in different files each having 1000 records. Here Problem is I don't know How many records will be there in new version of GDG? that's why I don't know How many Out files we need to use . Interesting??????????????

CTS,

4 19847

what is adabas? Can u point me to a resource so I can study up for an interview?

6 22195

Can anyone please give the example of Inline Perform.

TCS,

6 13853

There is a production file which has millions of records in it.The program that uses it ends up with an SOC7 abend.It is sure that the abend is due to some invalid data in the file.Is there any way to debugg the SOC7 abend with out giving displays? I need the record which is cause for the abend.

Danske, iGate,

8 41679

use of PUTOVR,OVRDTA,KEEP keywords?

HCL,

2 22920

where we give the MSGSFL in rpg400?

4 13550

how to change the length of the field in a physicalfile?

12 41972

Un-Answered Questions { MainFrame }

How to dsect parameter is used in bms?

1293

Sync points cannot be requested by the application programs? State true or false

1164

Explain what happens when you issue a escape routine in a program? Will there be any compilation /run time erro?

973

How can you do the explain of a dynamic sql statement?

1069

cics command level is?

1205

can you explain the difference between spacea,spaceb,skipa and skipb. I'm new to learning about as400 and printer files. can any one give me an example using source code showing the difference that occurs between using these 4 keywords. A-Physical file PF004 source UNIQUE R RR STUNAM 10 ROLLNU 5 0 MARKS 3 0 SEX 6 K ROLLNU 4 records present in PF004 are STUNAM ROLLNU MARKS SEX KAVYA 12,344 55 FEMALE MADHAVAN 14,579 60 MALE RAMYA 14,785 70 FEMALE KRISHNAN 14,988 72 MALE B-Printer File PRINT1 source A R HEADER A 10 3'STUNAM' A 10 20'ROLLNU' A 10 30'MARKS' A 10 40'SEX' A R DETAIL A SPACEB(1) A STUNAM 10 3 A ROLLNU 5 0 20 A MARKS 3 0 30 A SEX 6 40 A R FOOTER A SPACEB(1) A 20'END OF REPORT' C-RPG/400 Program PRTTPG source FPF004 I F E DISK FPRINT1 O E PRINTER C WRITE HEADER C READ PF004 60 C *IN60 DOWEQ *OFF C WRITE DETAIL C READ PF004 60 C ENDDO C WRITE FOOTER C SETON LR D-spooled file result set Display Spooled File File . . . . . : PRINT1 Page/Line 1/10 Control . . . . . Columns 1 - 130 Find . . . . . . *...+....1....+....2....+....3....+....4....+....5....+.... 6....+....7....+....8....+....9....+....0....+....1....+.... 2....+....3 STUNAM ROLLNU MARKS SEX KAVYA 12344 055 FEMALE MADHAVAN 14579 060 MALE RAMYA 14785 070 FEMALE KRISHNAN 14988 072 MALE END OF REPORT Bottom F3=Exit F12=Cancel F19=Left F20=Right F24=More keys I have changed from SPACEB to SPACEA now in my printer file source E-Changed PRINT1 Source A R HEADER A 10 3'STUNAM' A 10 20'ROLLNU' A 10 30'MARKS' A 10 40'SEX' A R DETAIL A SPACEA(1) A STUNAM 10 3 A ROLLNU 5 0 20 A MARKS 3 0 30 A SEX 6 40 A R FOOTER A SPACEA(1) A 20'END OF REPORT' F-Spooled file Result Set after keyword change Display Spooled File File . . . . . : PRINT1 Page/Line 1/10 Control . . . . . Columns 1 - 130 Find . . . . . . *...+....1....+....2....+....3....+....4....+....5....+.... 6....+....7....+....8....+....9....+....0....+....1....+.... 2....+....3 KAVYAM 12344U 055KS FEMALE MADHAVAN 14579 060 MALE RAMYA 14785 070 FEMALE KRISHNAN 14988 072 MALE END OF REPORT Bottom F3=Exit F12=Cancel F19=Left F20=Right F24=More keys Overprinting not displayed.

11230

. How to know why the OPM job is in MSGWAIT state?..WHAT COULD BE THE REASON FOR it?

7953

what the purpose of ovrdta, ovrata keywords?

1962

What is the main purpose of having user catalog in vsam?

1066

How can we debug cobol pgm containig idms using xpeditor?

1518

What is the use of trt instruction?

1024

What is the physical storage length of timestamp data type?

1096

Explain paging concept in memory?

1021

when are the unique constraints executed?

1130

Define dynamic processing?

1019

For More Un-Answered { MainFrame } Questions Click Here