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 is the difference between TYPE 1 index & TYPE 2 index

IBM,

1 13231

What are the disadvantages of using VARCHAR?

3 15659

What is the purpose of the DSNC transaction ?

1 7595

What are delete-connected tables?

1 4394

What is the significance of the CURSOR WITH HOLD clause in a cursor declaration?

4 30368

What is a correlated sub query?

2 5478

What is read-only cursor?

1 6788

What Utility is used to migrate DB2 from one release to the next?

1 5849

What is Skeleton cursor table (SKCT)?

2 14465

Under what circumstances will DB2 allow an SQL statement to update more than one primary key value at a time?

1 6127

What is the database descriptor?

2 14680

What is the syntax required for the creation of a cursor?

1 9786

What is meant by AUTO COMMIT?

3 10186

What information is contained in a SYSCOPY entry?

2 10025

What is the COBOL picture clause for a DB2 column defined as DECIMAL(11,2)?

Emsang,

5 20578

Un-Answered Questions { IBM MainFrame }

what is the role of the cursor in db2?

1071

How to Build a Row Condition?

1730

What are INPUT PROCEDURE and OUTPUT PROCEDURE?

1304

How can an in-stream dataset be terminated?

1347

List out the buffer pools in db2

1080

What is the use of the program list table?

1090

What does the 'cemt:cics' transactions do?

1213

what do you mean by define model parameter?

1164

What is db2 look?

1033

What are the two types of fields available in ims db?

1027

Explain ims software environment?

990

Every map is categorized into multiple fields, and there are three common working storage fields present for each of these respective fields. Mention those?

1070

What is sqlca?

1086

Mention the way of highlighting as well as putting a cursor to use in a cobol program.

1085

what is a corelated subquerry?

1130

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