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

what is db2 restart?

2147

what is the difference between COBOL2 AND COBOL390?

L&T,

3046

Matching Logic in Jcl not in cobol.Could any one please answer this question

4152

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

HeadStrong,

2383

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

HeadStrong,

1 9434

How can i load all the data from a file to Table (array) in cobol.How i manage the occurs clause with out reading the file.Any options avilable ? Please can any one help me it is urgent?

HeadStrong,

2577

how can we merge two input files from two different jobs into one output file ? Please ans any one ASAP?

1 4695

Suppose i have a variable with s9(18)v99 comp3 . what is the size of variable . If s9(18) comp3 is 10 bytes . There should be some difference between two allocations ? Thanks krishna chaitanya

CSC,

2 15241

how to put a dependency on job in jcl using opc scheduler?

CTC,

1 21040

What is the length of Signature?

UST,

3 8096

How can we override a file during runtime in RPG? Without using OVRDBF or calling a CL program

UST,

1 8774

Can a Db2 table data be retrived through JCL?

4 8619

Suppose there are many duplicate records in a Db2 table. What is the query to retrive only duplicate records?

4 9058

Suppose i have a Cobol field of 10 byte. it contains a decimal sign.How to know where is the point location?

1 5875

Suppose pgm A calling Pgm B .Pgm B has some Db2 program. at the time of compilation should plan and package will be created for both A and B or only B? What is the concept?

2 8273

Un-Answered Questions { MainFrame }

At what point are extension eliminators mandatory?

1001

how JCL works?

1257

When space is allocated for an output dataset, what units can be used?

1259

What is the function of rollback in idms?

900

How do you concatenate the firstname and lastname from emp table to give a complete name?

1071

How do you submit a job for execution?

1102

What are the advantages of vsam over isam?

1131

how do you define single dimensional array and multidimensional array in your cobol?

1087

how can you load a vsam data set with records ?

1158

How to code the db2 queries using rexx?

979

What are types of indexes?

1063

Is it possible to combine uni-rexx with a compiled language in any application? What applications interfaces are there?

919

what are the different commands used in rlu ?

2394

how to toggle between single line and multi - line display of a particular record in a subfile?

1781

how many files, printer files you can describe in a rpg?

1138

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