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

I have 2 steps in my exec statement , in first step I am creating a gdg, and the output of this step is going into second step as a input, and this second step is abended , now how could i approach in this case.

Bank Of America,

5 13579

I have a File that has duplicate records. I need only those records that occur more than thrice.

3 13525

Suppose I have a file with three fields with data in the following format 1. empid - S9(4) COMP 2. empname - X(20) 3. empsal - S9(5)V(2) COMP-3 If I view this file, it will not be in a readable format. How to display the empid and empsal fields in a readable format without using COBOL program? What kind of SORT card will have to be coded?

4 9789

Is there a way to check for an empty file in JCL other than using IEBCOMPR and the command PRINT COUNT(1)?

8 27885

Can comments be specified at the very beginning of a jobcard? Will the JCL execute?

3 7917

How to display the index.(displacement from an array)

IBM,

4 17157

How to define the a field which accepts value till 99999.99 in db2

3 8728

1) What is ONCODE (Return code) in PL/1? 2) How to handle the ONCODE in PL/1? Please give me some examples?

IBM,

1 7877

How many steps we can overide in the proc's?

CS,

2 7211

How to retain the Duplicates in the one records?

CS,

3 10175

Hi, I want to create alternate index on VSAM file.my file structure is ex: RoomID pic x(7) R000001 Floor pic a((6) First RoomNo pic x(2) FA1 Occupied(yes/no) pic a(3) Yes Occupied Batch pic x(10). Maths i want to create alternate index on floor,roomno fields.can i create alternate index on both the fields.and tell me how to create.

1 6169

How would I code JCL to copy a gdg data set G001v00 and create a gdg Data set G001v01

2 10458

How to overide the symbol parameter in the jcl ?

UST,

3 10059

I have three files for one step i need to override the third file how to do that in jcl?

UST,

1 9197

How to retrive the 9th records out of ten records using the cobol program ?

UST,

3 10100

Un-Answered Questions { IBM MainFrame }

Can you tell me how can you find out the # of rows updated after an update statement?

1095

In COBOL, what is the different between index and subscript?

1243

Mention the definition of cobol in varchar field.

1244

How to test SQL -911 error while developing COB-DB2 program

7558

Define RCT.

1208

What is the maximum number of segment types allowed for a single database?

1122

which is more efficient, level 77 or 01?

1037

Why do we use cursor?

1095

What is the physical storage length of time data type?

1123

What is meant by explain?

1125

What is dbrm?

1104

What is meant by mpp mode?

1093

What is cics load command?

1062

i want to maintain uniqueness on pdf without make lf??????????

2153

What is meant by drda?

945

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