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

Explain the use of the WHERE clause.

IBM,

2 5573

What is index cardinality?

3 11188

How do you declare a host variable (in COBOL) for an attribute named emp-name of type VARCHAR(25) ?

IBM, Tech Mahindra,

2 12255

What are the three types of page locks that can be held?

1 4730

What is the meaning of -805 SQL return code?

3 12972

What is a base table?

2 4991

what's the best lock size that you could use when you create a tablespace?

IBM,

2 6032

How would you print the output of an SQL statement from SPUFI?

2 8984

What is the STOSPACE Utility used for?

1 6615

Where besides the DB2 catalog is database object information stored by DB2?

1 5072

What is isolation level?

4 7465

What is a predicate?

1 4889

What is ALTER ?

3 7011

What do you need to do before you do EXPLAIN?

1 5339

How do you insert a record with a nullable column?

2 6387

Un-Answered Questions { IBM MainFrame }

What is the use of commit in db2?

1155

What are the types of processes to create a map in cics?

1104

What is catalog database in db2?

1221

before altering a table is it necessary to lock ? if lock what is it ? how to do ? ifi want to lock a table what is that command ?

2236

Explain the difference between a symbolic map and physical map?

1086

How to run cobol program using jcl?

1302

Explain difference between read(1) and read work file once?

1020

Explain the purpose of dd dummy statement?

1281

what is the meaning, the advantages and which are the types of evaluate statement?

1115

How do I copy a table in db2?

1067

How many databases are there?

1117

What is cobol?

1296

What is use of IBM framework?

2173

Mention the types of job control statements?

1236

How do you round the addition or subtraction of two numbers in assembler?

1093

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