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

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

Can we update with histogram?

2 9830

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

3 10291

differnce between read work file 1 and read work file once? why we are using work file once?

4 17825

how we can find occurence of MU and PE fileds in a file?

2 8531

how to move cursor to a particular field when position is not known?

3 10785

how many work file we can code in jcl?

2 9347

difference between escape(top or bottom) and escape immediate(top or bottom?

CTS,

3 22016

Is Constent can be define as a key field?

3 7908

Is it possible to create a logical file whose Physical file is not in same library?

6 14609

Is LDA can be access accross the Job?

9 14850

What is the purpose of the SDSNLOAD dataset in the STEPLIB while running DB2 programs?

2 14405

Explain fixed length record in cobol? with suitable example

IBM,

1 5698

What is the purpose of coding FETCH in a SQL SELECT query? Explain with an example in Detail?

4 8009

We are using the searching a table which is indexed, once the key is found, how can we get the occurance at which the key was found.

1 4528

I have a files containing both duplicate and non-duplicate records.The file is already sorted by a key.I want to determine those records that are duplicate and records that are non-duplicate.If duplicate the record is move to a duplicate file and if non-duplicate that will be move to valid file.thank you

1 5277

Un-Answered Questions { MainFrame }

Define free space?

1069

Difference Between Source Physical File & Physical File?

1091

What is the purpose of dd?

1264

What are INPUT PROCEDURE and OUTPUT PROCEDURE?

1309

what are the two record formats a subfile contain ?

1931

What is the cics command level?

1067

How can we read file using curser? how to define a curser?

1321

What are bind parameters in db2?

1060

what is the meaning of dynamic processing in vsam?

1070

what is the use of IEBGENER utility?

1182

Can you explain function of iebgener?

1035

Explain about base register?

1071

What is an instance database?

1068

What will happen if both steplib and joblib are determined?

923

which is more efficient, level 77 or 01?

1057

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