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

My IMS main progam is calling Db2 subroutine ...Its giving - 923 db2 sql code..so could any one tell how to solve this issue.

Cap Gemini,

3591

what is the maximum error code in mainframe

2 9831

Hi Devolopers.. i need ur help.. i have 3 years of exp in Manual testing and SQL, next month onwards i shifted in to MAINFRAME TESTING... i have ZERO Knowledge abt mainframes.... PLS SUGGEST ME WHAT I LEARN in AMEERPET? mainframe testing or mainframe total devolopment subject... AS a devoloper u know every thing tester what to do PLSSSSSSSSS help me ITS VERY URGENT...

1 4491

Can anyone tell me how to handle the array beyond the limit. If we have an array or a table which can handle 5000 records but now we have to compensate 20000 records with the same array? how to handle the situation.

2 9628

What is the difference between /copy and /include in RPGLE?

1 19643

Which is more efficient - the external subroutine or a copycode coded in to a NATURAL program? And Why?

Hexaware,

2 14143

We have two PS files,want to compare those files and put the duplicate records in one file. Input file 1 contains(1,2,4,9,10) Input file 2 contains (1,4,5,11,12,14,16). Help me with jcl.

6 16972

I have two questions here. 1. How to read a flat file in reverse order? 2. How to read a VSAM KSDS file in reverse order? In both the cases we donot know the total number of records.

L&T,

2 17411

can anyone explain aboutovrOVRDBF,OPNQRYF, OVRSCOPE and OPNSCOPE?

TCS,

2 15773

What is catelog procedure and how many catelog procedure to use in one job?

Infosys,

2 8680

How to check empty file in jcl?

Infosys,

4 27104

How to pass values in jcl to cobol?

IBM, Infosys,

4 25662

Request to database but database is not available so what is was abend is raised?

UST,

2 7623

Why do we need to create an alias if we can directly use the table name? What are the benefits of referring a table name by its alias? Also, when should we go for alias and when for synonyms?

1 4113

what is the responsibility of the construction superintendent

Almco,

2140

Un-Answered Questions { MainFrame }

What do you understand by the term notcat 2 – gs?

1237

what is the purpose of putovr (put with explicit override) keyword?

1646

Explain the cics command that is used for reading a record from the tdq?

1001

What is concurrency?

1226

What is the diff bw PF/LF Name and their Record format name? what is restriction in record format then file name?

2997

Following a db2 update statement, what is the quickest way to compute the total number of updated rows?

1060

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

951

What do you mean by an alias?

1071

What are the contents of dclgen?

1101

How to find the list of source physical files in a library?

1114

Define communication area?

990

What is the copy idms subschema-binds in idms?

836

What is mainframe database?

899

which cics service transaction is used to gain accessibility to cics control tables? Mention the one that has the highest priority.?

1180

What is the role of union all and union

1121

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