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 26561

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

HSBC,

4 14314

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

6 12770

What is the OPEN and CLOSE accesspath?

CTS,

3 10071

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

TCS,

3 9122

IN RLU what are the record level keyword is used?

iGate, TCS,

5 14849

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

ADP, Syntel,

4 21682

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 9704

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

4 19138

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

Bally Technologies, Cognizant, Vertex,

6 20598

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

5 15496

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

2 7047

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 13226

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 13203

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 7668

Un-Answered Questions { MainFrame }

how to pass parms to ispf edit macro?

1103

What does a finish do in idms?

945

What is drda ?

1115

Define a page in idms?

829

What is the use of predicate?

1042

write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

1233

What is dbrm in db2 database?

1116

How to debug a batch job when it is in messagewait(mswg) status. I know the steps for batch ebugging, but im confusing with when we submit any job for batch debug we put in held state. So here also do same thing or any other way?

1269

What are the different rules to perform a Search?

1098

in my project..TEST is db2 8.1 version In PROD it is 7.1 if i do REORG in TEST.. can I use the same REORG jcl with out modification in PROD region (this is DB2 8.1 )? if not, what modification i need to do in my REORG control card?

2097

If you are current on the owner of a set, what is the difference between an obtain next and obtain first? Actually in which topic will we use dis???Plz explain it clearly

3164

Can you explain differences between temporary storage queue (tsq) and transient data queue (tdq)?

1081

how is the future of tandem mainframe?

3379

What is batch dl/i mode?

3345

What is integrated data dictionary?

946

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