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

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IBM MainFrame Interview Questions

Questions Answers Views Company eMail

hi. This is Ram.i have one doubt.why can't we display comp-3 variables directly? let me answer quickly plez........

1 5862

In COBOL CALL-CALLING,if a program A is calling 3 sub- programs, dynamically, then it is said sub-programs will always will always in Initial Mode. My question is : Do we need to code CANCEL or (IS INITIAL) for dynamically called sub-programs or it is the property of Dynamically called pgms so every time sub-pgms are called they will be in initial mode. ***This question is only Dynamic call****, Please reply. Thank you in advance.

Wipro,

4 9735

can alternate index use in ESDS since it does not contain primary index? if yes can you explain?

iGate, Temenos,

2 7295

what is the steps followed in EXPLAIN Process or EXPLAIN command. (Explain is for identifying the optimized access path but how or what is the steps for doing the EXPLAIN)

IBM,

4 8960

can alternate index use in ESDS since it does not contain primary index? if yes can you explain?

Temenos,

3 9052

What is data trace system 2.0 used for?

5641

how many members can be created inside a single pds?

8 47854

When we create a physical dataset we specify dcb parameter block size.What is the use of Blocking?

4 7947

In a proc i will concatinate 4 dd statements.i want to overide 3 dd statement through jcl how?

3 7737

We are using 2 files , file one has data, file two is empty.Using jcl how can we find the other file is empty?

CSC, IBM,

9 23644

How to execute step2,step1, step3 if step1,2,3 are in order

CSC,

8 14178

i have a string of 80 chars i want to replace 4th char with "a"?

CSC,

3 9655

how can you copy records present in a flat physical file to a database file(physical file).please explain in rpg400 with a simple example

CTS,

1 5592

How to initialize 20,000 bytes in the Assembler..

Amdocs, IBM,

5 17995

How is Telon(CA-Telon) used to build map?

4610

Un-Answered Questions { IBM MainFrame }

hi,what is the module? how many modules in mainframe based banking projects

2995

How to compare two files by using sort?

1016

What methods are available for persisting records in an idms database? Explain.

814

Why do we use "drop"?

979

What type of database is db2?

965

Which component is responsible for db2 startup and shutdown?

1033

What is the use of disp parameter?

1138

by using cursors , we can access particular records from the table based on some condition, i want to delete those selected records, how can we write a query for this in the program?

9191

What is the difference between a binary search and a sequential search what are the pertinent cobol?

1138

Explain host variables?

987

What is the physical storage length of date data type?

1252

Define predicate?

1129

What is the local-storage section?

1143

What is the meaning concurrency in the db2 database?

1108

how do you create a dataset in a jcl with the same file organisation as that of another existing dataset?

1400

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