IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

COBOL (1072)
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DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
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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 13306

What are the disadvantages of using VARCHAR?

3 15849

What is the purpose of the DSNC transaction ?

1 7688

What are delete-connected tables?

1 4489

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

4 30574

What is a correlated sub query?

2 5618

What is read-only cursor?

1 6875

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

1 5931

What is Skeleton cursor table (SKCT)?

2 14610

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

1 6201

What is the database descriptor?

2 14826

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

1 9918

What is meant by AUTO COMMIT?

3 10323

What information is contained in a SYSCOPY entry?

2 10146

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

Emsang,

5 20762

Un-Answered Questions { IBM MainFrame }

What is the difference between lds and esds?

1113

Explain storage architecture of idms.

918

In job processing, what happens in conversion stage?

1251

by using cond parameter maximum 8 cond can be coded in single cond means ?explain

1535

What is drda ?

1225

Explain the use of DCT ?

1127

Explain about logical data model of idms?

955

What is bind in db2?

1105

Is mainframe an operating system?

995

What is check constraint in db2?

1174

How is the value function used?

1221

What Are Send Map Maponly & Send Map Dataonly ?

1280

What is use of restart and how to use it?

1370

Can we give +2 instead of +1 while creating a new gdg file?

1035

How can the attributes of one sms dataset be copied to another dataset?

1481

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