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 base table and view?

7 33070

I have a KSDS File.I hav a Records like 1,2,3,4,5,6,...100. I want to read using Dynamic mode like from 10 th Record onwards like, 10,12,14,16,18,....60. Waht is the command for this.

CTS,

2 8653

what is the difference between adding keys & constraints into a phisical file

HSBC,

4 11993

what is the difference between adding keys & constraints into a phisical file

HSBC,

6 15903

How we can't update join logical files?

10 25913

what is the purpose of DMPCLPGM IN CL?

IBM, Wipro,

3 19782

How can i write a comp-3 variable into a sequential file should i declara the field in the file description as comp- 3?

1 11287

I want to change the attribute of field or want to add new field in existing PF but condition is format level identifier should not change, is it possible?

Mind Tree, TCS,

9 25690

what is QSAM?use of the QSAM?how it is used?

1 7138

Alt key is used for what type of vsam file

3 7690

How many cluster index can have in a table?

HSBC,

3 7653

what is level 66 means??

7 28157

What is UNION,UNION ALL?

2 13474

What are the different types of VSAM files available?

CSC,

3 12791

What is Control Interval, Control Area ?

L&T,

1 7402

Un-Answered Questions { MainFrame }

Explain the output procedure?

1093

How does db2 sample database connect?

1098

if we tried to move year part of *iso date into a field of length 3, what will happen ?

1390

What is a db2 schema?

1304

when would you prefer logical file than opnqryf?

2596

What Is The Difference Between Goto & Exsr?

1761

Define exec cics retrieve?

1248

Explain the disadvantage of dynamic generation of acb?

999

What will happen if we drop the base register in the program which contains only one basereg?

1035

How to compare data between two tables in db2?

1147

List the various advantages of using jcl language?

1532

WHAT IS THE PROCESS OF "CLAIM PROCESSING SYSTEM"

2449

Why adabas is used?

996

what is the resolution for sb37 error

9283

What is array in as400? What are the types of array?

1171

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