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 to read records which is in sequential file in reverse order ? Exp. 1 2 3 4 5 . i want 5 4 3 2 1?please clear my doubt any one

IBM,

10 26585

How to create a key field for a logical file inside RPG?

HSBC,

4 14335

Can somebody tell me that, Is it possible to read all the member of PF without OVRDBF?

6 12783

What is the OPEN and CLOSE accesspath?

CTS,

3 10083

what is estimation? and what is the level identifier parameter in PF?

TCS,

3 9137

IN RLU what are the record level keyword is used?

iGate, TCS,

5 14864

What is "Call by content" and "call by reference"?

ADP, Syntel,

4 21702

what built in function can be used with SETLL.If you want to check whether the search argument is successful or not? Please give me answer with example?

3 9714

what is mean by *MAP and *DROP?what commands use these two keywords?why are they used?

4 19150

write the SQL statement to retrieve the 2nd Highest salary ammount(File Name="EMPLOY",Field Name="SALARY")

Bally Technologies, Cognizant, Vertex,

6 20611

How can we find from which source the program has been compiled for a given RPGLE program object?

5 15517

Please give me the code for A=A+1 in cl program?

2 7058

what is the correct about QTEMP library(below mention)? a.it is Unique to a job b.it can be shared between different job c.it can only be deleted by QSECOFR d.Non Please give me the answer for this?

Wipro,

8 13255

An rpg program is processing an openquery file.The file is declared in update mode in F spec.Can we update this file? Please explain?

3 13213

A phisical file has two fields like 1) Account No(10,0) 2)Phone No(15,0)Unique on both fields?Please give me the answer for this?

3 7674

Un-Answered Questions { MainFrame }

What are the mandatory keywords of sub file?

1486

what does opcode post do ?

1778

Hi,Please give me the the answer for these quesitons? 1.what is IFS and ICF and RAPE amd DISKET fils? explain with example please? 2.What is the difference between POST AND SPACE OPCODES? 3.Can anybody tell me default printerfile command and object type?

2596

What does db2 mean?

1021

What is the difference between iter and do?

1217

how do you access an uncataloged dataset in a jcl?

1745

how to move the records from file to array table. give with code example

2682

What happens in bind step in a db2 program?

978

what is the difference between packed decimal and zoned decimal?

3250

What are the access method services used in vsam?

1036

What is condition checking in jcl? Is this possible?

1120

How to find the maximum value in a column in the db2 database?

1084

Explain the function of a dd statement?

1216

what is the purpose of ovrdta and ovrata keywords ?

1515

if i am having a cics,vsam and db2 programs with each functions and i want that each function on screen?

2270

For More Un-Answered { MainFrame } Questions Click Here