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

I have to execute 12000 CL Commands one by one.. So, I have created a file called COMMAND. This file has only 1 field called STRING. This file had 12000 records, and all these records are CL Commands (ex: CALL PGM(PGM1)), etc) I have written a CL which will read all the record and do sbmjob.. But it is not working... Plz help me to exexute all these 12000 commands..

ISE,

2 4594

is step name is compulsory in jcl ?

2 6864

I have put two write operations in a single para for two different conditions.Will that lead to an abend or run successfully and write two records?

CTS,

1 5948

Is it possible to access some memory location (Ex: VAR1 DS P) without using Base Displacement?

HCL,

1 3691

What is symbol table in assembler?

HCL,

2 5575

what is multiple member pf

Active Brains,

1 3867

what is general and type of general

Active Brains,

1 3135

wirte a simple program for read file in cl

Active Brains,

2 4320

what is dynslt and why we use that command when do we use command

Active Brains, UHG,

2 7752

what is open data base command

Active Brains, Cognizant, CSC, CTS,

1 3667

what is EXCEPT command in rpg and use

Active Brains,

1 6439

what is exception and how many types of exception

Active Brains,

1 4477

what is error handling concepts in cl

Active Brains,

3 6870

Suppose we have 5 steps in a job.No step should be executed After submitting every step in a job

AVB, IBM,

2 5925

query to just fetch first matching row and stop execution. once one matching row is found ..no more records should be checked.. if the first record is matching.. the query must stop

IBM,

2 5456

Un-Answered Questions { MainFrame }

What is length is cobol?

1064

what EXEC statement is and what is the syntax of EXEC statement used in JCL?

1126

What is file information data structure(infds) in as400?

1434

What is meant by union and union all?

965

What is the difference between physical file and logical file?

1087

What is role in db2?

1056

What is runstats and reorg in db2?

1257

How is deadlock resolved?

1095

We can use PASS with permanent datasets also. THEN Which is the condition in which we may use PASS (instead of KEEP) with permanent data sets, while there is no need to specify UNIT and VOL for them like temporary data sets (in cas we use KEEP for permanent data sets) ?

2356

How do you reference the following file formats from cobol programs?

1137

Can we see the copy book length using file-aid?

864

Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.

2364

Explain processing program table(ppt)?

1091

suppose oza017.myorg.emp has 100 records ,oza018.myorg.staff has 200 records but 50 are the common records in both files copy all the common records into oza017.myorg.xyz dataset?

943

I HAVE A VB BLOCK WHICH IS USED AS INPUT IN COBOL CONATINING SOME RECORDS CAN I CHANGE THE FILE FROM VB TO FB?

2521

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