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 26213

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

HSBC,

4 14095

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

6 12478

What is the OPEN and CLOSE accesspath?

CTS,

3 9894

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

TCS,

3 8934

IN RLU what are the record level keyword is used?

iGate, TCS,

5 14565

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

ADP, Syntel,

4 21442

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 9569

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

4 18923

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

Bally Technologies, Cognizant, Vertex,

6 20313

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

5 15299

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

2 6925

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 12916

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 13020

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 7513

Un-Answered Questions { MainFrame }

how can you execute a command from within an rpg program without calling a clp program?

1908

Explain what are the optional parameters to the input dataset while loading the empty cluster with the data records?

1092

What are the different types of base tables?

1029

What is diff between EVAL & MOVE?

1481

What are the advantages of vsam over isam?

1079

what is the use of jdftval in join logical file?

1728

Difference Between Source Physical File & Physical File?

1027

What is sort? And its syntax?

986

What is netezza database?

960

Explain the process in which flat files are converted into vsam files?

950

What is performance tuning db2?

1010

In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?

1410

Define the term mro (multi region operation)?

1037

the dfhcommara is used to pass information from one application to another. What are some other ways that this function can be accomplished?

1088

In job processing, what happens in execution stage?

1140

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