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?

1065

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

1101

What is isolation level in db2?

1000

Why do we use cursor?

1096

How to compare data between two tables in db2?

1083

What is lock escalation in db2?

1029

What is the difference between cursor and select statement?

1097

What is difference between alias and synonym in db2?

1138

What is host variable in db2 cobol?

1074

How do I import a csv file into db2?

987

What is image copy in db2?

1011

How do I copy a table in db2?

996

What is explain in db2?

1012

What is the purpose of rollback and commit?

1189

How do I change the column size in db2?

1151

Un-Answered Questions { IBM MainFrame }

What is program reentrance?

1159

Can you explain primary aspect of cics?

1155

What is the use of db2?

1051

Explain the difference between and exec cics xctl and exec cics start command?

1145

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2775

Is automatic restart possible in jcl?

1209

What are the different versions of gdg named?

991

How to get the cursor position when we receive a map?

1076

List some fields from sqlca?

1056

What is concatenating?

1074

What is the meaning of the deq command?

1142

What is the pic clause for the any bll cell type of data fields?

1064

what happens in conversion stage in job processing?

1218

What is need of start 0?

1123

What are the parameter we cannot use in procedure? How many instream we can write in single jcl?

1070

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