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

without logical file we cannot access the data in physical file.but we specify physical file in the program(ie:- Ffile IF E k disk).how can it be accessed?

HSBC, TCS,

3 9704

while i am using the dspmsg command on comman line in Mocha am getting error like Not authorized to message queue message my messagequeue Name? can anybody help me how to change my message queue Am anable to see my messages in message queue

1 3225

I have a jcl which is using 2 data sets i want to override those data sets. how can i override the files within the JCL. Give me the syntax. Make sure that it is not calling any Proc.

1 3661

how to know total no of records in pf with out using sql??????

3 12897

Can we able insert data into a PS file Using IEBUPDTE utility??? If Yes can anyone describe it please..

1 5723

proc1,proc2,up to proc5 is there if i want to call proc1 and proc5how can u write the code

2 6311

Shall i use this query to retrieve first 4 records, Select empno, sal from emptbl where empno < 5. like this can we fetch first 100 records?

3 7377

Errors in Sql query will be in which state?

1 5286

Select empno, sal from emptbl where empno < 101.By this query can we fetch first 100 recs? where empno is primary key.It won't throw -811 error? if it wont,then what is use of cursor technique while fetching first 100 recs. Please need more clarification.

2 6161

what is lrec=f,what is difference between f,fb,v,vb?what is default value?how do we came to know that records are in f,fb,v,vb?

IBM, Wipro,

2 21717

I had 100 steps in jcl i want to execute first 10 steps only?

IBM,

6 12244

what is the use of ENTRY in IMS?

CGI,

3 13277

I had 100 records and i want to execute last three records by using cobol programming?what will be coding?

IBM,

4 11794

How do get the result of your program directly on your pc?

UST,

2298

What is diff between vsam and db2?what is advantage of db2 over vsam?which is best suited one?

Fidelity,

1 9333

Un-Answered Questions { MainFrame }

What are the steps involved in access method services?

907

when an xctl is done, does the tranid change ? Is a new task created ? Does it cause an implicit syncpoint to be issued ?

1163

What is the interactive job? What is the batch job?

979

What Is Default Data Type (if You Define Decimals '0') In Physical File?

1777

If I have limited experience with Rexx or it's been a long time since I've used it, what kind of help is available to get me started?

851

What is acbgen process?

1112

What is database alias db2?

1068

What is a ci split?

915

What are hierarchy levels in jcl?

1475

Explain how can values be passed from the job stream to an executable program?

1136

Explain dbdgen process?

1029

I have a job called careerride and some steps in it as step1,step2. But I want to execute step2 before step1 ? How do I do that?

1319

What are the contents of a dclmgen?

1071

What is dbrm? What it contains? When it will be created?

997

What are the parameter we cannot use in procedure?

1062

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