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

How can we read a particular record from the database file which is not having DDS (Flat File). For example, there are 100 records in the flat file. How can we retrive 15th record in RPG/400 program (Without using CL)

CTS, IBM,

6 22599

Can there be 2 job statements in a JCL? If yes what is the purpose of doing tha?

3 9084

can any one pls tell me some differences between a LF and command OPNQRYF?

Accenture, Cognizant, eFunds,

3 12587

Can we use OVRDBF command without using of OPNQRYF ? Or can we use OPNQRYF command without using of OVRDBF command ?

HCL, iGate,

4 33389

Which is better LF or OPNQRYF ? When should we use LF and when should we use OPNQRYF ?

HCL,

5 17373

with out sorting how to copy records from one file to another file using jcl.Mean I have one input file in which the record are like 1,6,5,4,2,3(for example) and i want to copy to output file from top to bottom(without sorting) like 3,2,4,5,6,1.so I want the JCL for this.cna any one can answers?

TCS,

1 17105

What exactly is a hyperdescriptor? How does it work?

3 12862

What does it mean when EIBCALEN is equal to 1 and other values?

5 20805

what r the types of job control statements?

2 6364

what is the meaning of keyword in jcl?what is is opposite?

4 8434

describe the job statement, its meaning,syntax and significant keywords?

1 4756

describe the exec statement,its meaning ,syntax and keywords?

3 7737

describe the dd statement,its meaning,syntax and keywords?

1 4160

what is the restart?hopw it is invoked?

1 5049

explain concatinating datasets?

1 4887

Un-Answered Questions { MainFrame }

How to find the number of rows in a db2 table?

1120

What is the syntax of JCL statement?

1235

define what a data area is along with a brief example of what it may be used for?

1735

Difference Between Ca & Cf?

1088

What are the different parameters that are used in vsam?

1158

What are hierarchy levels in jcl?

1522

When you specify multiple datasets in a JOBLIB or STEPLIB, what factor determines the order?

1463

Explain the difference between the into and the set option in the exec cics receive map command?

1122

Explain how to move cursor to a particular field when position is not known?

1002

State the differences between vsam and non-vsam files?

1055

What is qsam? How it is used?

743

Explain various types of locks in db2?

1151

Define pcb?

1083

What is the function of a dd statement?

1208

What is the difference between Structured COBOL Programming and Object Oriented COBOL programming?

1123

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