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 record label is empty or standard in file description of data division?

HCL,

2 7530

what is label record is standard or omitted in file description of data division?

IBM, TCS,

3 26077

how would find total records in files using seqientional

HSBC,

1 9554

What is the difference between ITER and DO ? I know both are used to execute set of statements repeatedly, but what is the main difference?

CGI, Wipro,

2 17931

Hi, I am getting the error in RPG (All Record Formats for externally-described file ABCD ignored or dropped due to error; file ignored.) Please suggest any

Satyam,

2 28490

Can 88 level variable be declared in FD section..?

Infosys,

1 15665

I have 1000 rows in a db2 table.I want to update first 100 records,How do I do it?

CTS,

4 15696

How do I handle -911 (deadlock) error in a db2 program so that the program will never abend?

CTS, IBM,

3 21699

select distinct(empid),distinct(dept),name from EMP will the above query work?

CTS,

2 9142

We have an output dataset in job with disp parameter as SHR. Can we write data in that file dataset?

CTS, IBM,

2 9155

How can we increment subscript and index?

CTS, IBM,

1 8299

I have two tables A and B. Both tables are connected with SSN number as foreign key. I want to retrieve a column data from B table. How will you write a query?

CTS,

3 8870

While creating a table, by mistake you have given size of one field as 10. But as per requirement size should be 8. What is your next step?

CTS, IBM,

4 11357

We can allocate memory dynamically by using GET MAIN command my question is at what scenario we can't release this memory and reuse this same memory??

BirlaSoft,

3247

what are the paramater we cannot use in procedure?how many instream we can write in single jcl?can we call instream to catalog and ctalog to instream?

Satyam,

2 8572

Un-Answered Questions { MainFrame }

what is the purpose of the verify function of idcams?

1056

Explain the difference between and exec cics xctl and an exec cics link command?

1118

Kindly specify the pic clause for the any bll cell type of data fields?

1223

What does "using" do?

1059

How and when does the db2 enforces the unique key?

1084

What is a bind card?

1219

When reorg is used?

1130

what is a composite key?

1680

How does db2 sample database connect?

1034

Explain the types of perform?

1018

Can you explain exec cics handle condition command?

1081

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

2268

explain how can you initialize a vsam file before any operation?

1101

Discuss about changing dataset name in proc.

1236

how do you specify page overflow indicator for printer files in rpg?

2282

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