IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

What will happen if a variable is declared as below.. Explain with an example? Working storage section:- 01 WS-VARX PIC X(10) VALUE 'ABCDEFGHIJ'. 01 WS-VARN REDEFINES WS-VARX PIC 9(5) VALUE '12345'. What will happen I am going to Display the WS-VARX and WS- VARN?

Xansa,

6 10929

My JOB contains three steps. //STEP1 EXEC PGM=ABC //STEP2 EXEC PGM=DEF //STEP3 EXEC PGM=GHI My Question is 1) I want to execute second step only. How will do. 2) Soppose U consider above three steps are in PROC steps and I want execute the PROC second step only? How to execute the second step only. During exection time its creating any ABEND? Please let me know..........

2 7746

When the working storage variables get allocated? a.At Compile time b.At starting of the run time c.At end of the run time. d.None of these

Wipro,

6 13867

Suppose if I need to update a column, how you do that using cursor?

Verizon,

2 8466

Suppose the outcome of executing a query results in a row having null. Based on the answer how you use it? Its declaration and inclusion?

Verizon,

2 6565

i want to use only first 100 records from a file.plz tell me how to write JCL for this(for read,copy,write operations).plz give me details of all posible JCL utilities?

CTS,

7 44246

What is COUNTERS in PL/1? How to assign the COUNTER variables? WHich Data Type it can be used for this?

Verizon,

2 6689

How to compile PL/1 DB2 program? Please provide me details on this process?

SPIC, Verizon,

1 9144

what is the difference between Normal vaiable and comp variable.

DELL,

5 14114

A field declared as P8 needs to be redefined as Alphanumeric. What would be its new size?

9 15680

Is it possible to declare a GDA for an external subroutine?

4 12125

How to read the last 100 records from a COBOL file. The file contains N number of records.

IBM,

11 41819

For unmatched rows returned from an outer join, the column values in the other table are set to null e.g If A OUTER JOIN B returns some unmatched rows from A, the corresponding column values in B will be set to null. What can be done so that a null value is not displayed for these columns?

3 6906

What is the significance of the PROGRAM-ID paragraph? If this name doesnt match with the name of the COBOL program, does it make a difference? Is the name specified in the PROGRAM-ID paragraph used as a name for the load module or any such thing?

IBM,

4 16668

How to find whether a Flat file is empty or not without Reading a file in COBOL Program. (not using JCL)

Bank Of America,

9 34807

Un-Answered Questions { IBM MainFrame }

What is a Foreign Key?

1150

What is currency in idms?

1021

What do you understand by psb and acb?

1185

Can I share my data with other jobs? How?

1207

What is use of IBM framework?

2175

How is data retrieved from multiple tables using a single sql statement?

1093

Is db2 relational database?

1054

Who uses db2?

1124

What is the difference between a schema and a subschema?

1987

Define a region in idms?

944

For a db2 column that is being defined as decimal (11, 2), discuss the cobol picture clause.

1175

kindly specify the pic clause for the following:any bll cell, data type of length option field, hhmmss type of data fields?

1184

On which levels locks can be applied?

1216

what is the purpose of the verify function of idcams?

1108

What is the primary aspect of CICS?

1193

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