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 role of union all and union

1127

What is the role of schema in the db2 database?

1273

What are the different types of base tables?

1092

What is dbrm in db2 database?

1115

what is the role of the cursor in db2?

1067

What is a trigger in the db2 database?

1080

How to find the maximum value in a column in the db2 database?

1082

What is the physical storage length of the data types: date, time, timestamp in the db2 database?

1158

What is the clustering index in the db2 database?

1001

What is the syntax for creating a table in the db2 database?

1105

What are the benefits of using the db2 database?

1229

What is buffer pool in the db2 database?

1103

What is the meaning concurrency in the db2 database?

1110

What are the two types of logging in the db2 database? Explain them.

1073

List down the data types in the db2 database.

1123

Un-Answered Questions { IBM MainFrame }

What is the difference between read work file 1 and read work file once? Why we are using work file once?

965

Explain control variable in online screens?

1002

What does a ROLLBACK do?

1520

What does the keyranges parameter in define cluster commends do?

949

can oorexx run ibm object rexx programs?

1008

Define declaration generator (dclgen).

1114

What is null in db2?

1024

When do you get -811 sqlcode and how to resolve it?

1005

What is the difference between cursor and select statement?

1101

Are view updateable?

1043

In COBOL programming, what is PERFORM? What is VARYING?

1152

what is difference between file-aid tool and file-aid utility?

1501

Tell me how many alternate indexes you can have on a dataset?

1099

How many module come in Ibm framework?

1991

What is copy pending status in db2?

1127

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