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

Q1. How will you use two different DB2 qualifiers in a single COBOL program? Suppose we have 2 tables EMP1 and EMP2 with same structure defined in two different DB2 qualifiers QUAL1.EMP1 and QUAL2.EMP2 now during first 15 days we want to use QUAL1.EMP1 and rest of the days QUAL2.EMP2 how will we do this. We can create a single program and a single load for this program.

RBS,

2 7583

Q3. How will you fetch duplicate values from a DB2 table?

RBS,

2 15137

Q4. How will you get the count of record without using COUNT verb in query?

IBM,

2 12846

I have file with data as follows data 1 2 3 4 5 I need to read 1 and 5 ,then 2 and 4 then like.. upto end of file, can any one help on this

ISG,

3 8424

I need to insert a record in a file using STRSQL containing the some field values same as an already existing record in that file.I know to smple insert mentioning those values one by one.But is there any another query can be prepared for the same .Please share the query if known to you. Thanks in advance.

CSC,

2790

Is it possible to add an keyfield or field to an Physical file without changing its file identifier. Example : - Say I have an existing physical file which is being used in 5 programs. Now I want to add an additional Keyfield or an field to it and I don't want to recompile the programs.

2 5424

Can be OVRDBF command mentioned after OPNQRYF command in CL?

1 5418

What is the exact difference between Service Program and Binding Directory?

1 7525

What are the types of Signature validation?

1 4489

What is an Array Data Structure?

1 4022

How to read data from *LDA (Local Data Area) in RPGLE program without using IN opcode?

1 9572

can i sort packed decimal if i can tell the syntax

Barclays,

1 5757

What is Multi Occurrence Data Structure(MODS)?

CTS,

1 4752

In all our JOB Statement we have always COND=(4,LT) defined. Nevertheless when a Job failed the last step should then be executed (send a message to an user). Due to we don't like to change all our JOB's (ca. 2000), we are looking for a simply solution.

4 10073

What is IBM OS/2?

1 2793

Un-Answered Questions { MainFrame }

Explain how do you delete item 3 in a five-item tsq?

980

how many maximum spaces could be given in o specs?

1160

What is the use of uni-rexx?

1001

In a CICS program, how will you read a VSAM file?

1189

What is db2? Explain.

1124

Explain in detail about buffer manager and its functionalities?

1162

in ways data can be passed to a COBOL program from JCL?

1299

Explore the syntax of the evaluate statement?

1021

How is the value function used?

1221

How you can read the file from bottom?

1201

What is the output of the following command given in tso/ispf terminal?

1083

what is the purpose of the verify function of idcams?

1107

in conjunction with which statements can orxx and andxx conditions be used ?

1960

what is the purpose of overrides?

1842

How to Save a Query?

1657

For More Un-Answered { MainFrame } Questions Click Here