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 index in db2?

1 1705

How do I delete a column in db2?

1109

What is null in db2?

1026

How do I delete a table in db2?

1073

How do I create a view in db2?

1024

How does cobol compile db2 program?

1060

How do I start db2 in windows?

1095

What is deadlock in db2?

1070

How to check last update on table in db2?

1059

How do I optimize a query in db2?

1101

How connect db2 database to datastage?

1243

How does db2 sample database connect?

1031

How to check table size in db2 sap?

1040

What is load replace in db2?

994

How do you stop a db2 database in linux?

1014

Un-Answered Questions { IBM MainFrame }

Have you caused any huge mistakes for the bank?

941

Tell about the ams used in vsam?

1178

how do you reference the ksds vsam file formats from cobol programs

1191

What is DEQ?

1045

Explain the difference between using the read command with into option and set option?

1022

I understand Join always perform better than subqueries. Then what is the advantage/use of Subqueries/correlated subqueries etc.,in DB2 programming.Please explain.

2066

What is db2 catalog database?

1043

what is the syntax of ams modal commands?

1264

Explain the difference in data type "x" and "p"?

1034

Explain foreign keys?

1020

Categorize the mainframe manual testing?

987

Define temporary storage?

1062

What is the maximum No of rows per page?

1069

in a cobol select statement, can you tell what is the organization for a ksds?

1115

what are transient data sets defined to cics?

1177

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