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

How do I import data from excel to db2?

1074

How do I add a column to a table in db2?

1104

What is isolation level in db2?

1006

Why do we use cursor?

1105

How to compare data between two tables in db2?

1088

What is lock escalation in db2?

1033

What is the difference between cursor and select statement?

1106

What is difference between alias and synonym in db2?

1143

What is host variable in db2 cobol?

1078

How do I import a csv file into db2?

991

What is image copy in db2?

1021

How do I copy a table in db2?

1000

What is explain in db2?

1027

What is the purpose of rollback and commit?

1195

How do I change the column size in db2?

1157

Un-Answered Questions { IBM MainFrame }

Name the lockable units in DB2?

1128

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

1109

Can you use max on a char column?

1097

What is a cursor in programming?

1070

What is null in db2?

1026

Differentiate between hdam and the hidam databases?

1045

In job processing, what happens in execution stage?

1204

How can you classify the locks in db2?

1089

we cant write data into file using cl program then what is sndf

1660

explain the information contained in ci

1037

Where do you specify them?

1283

Explain the function of data manager.

1046

how many buffers are allocated to vsam ksds and esds?

1167

If we say that bms length of field = 0, then what does that mean?

1260

What is the purpose of using commit?

1100

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