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

Can DB2 be accessed by TSO users? If yes, which command is used to invoke DB2?

1 5627

max number of columns in a db2 table?

6 25056

Can you access the DB2 Directory table using SQL?

3 7647

What is correlation names?

1 4846

What is an alias?

3 6307

I need to view the number of tables existing under one particular Owner. Is it possible? If so, pl give the SQL query for this?

3 6574

What is the difference between Where and Having Clause

IBM, iFlex,

7 30492

Which transaction use a command thread ?

1 3804

What is a LIKE table and how is it created?

2 5507

Name some fields from SQLCA.

2 6554

what's the equivalent Cobol Data type for Decimal(x,y) in DB2? what does the current SQLID register contain?

Cap Gemini, Tech Mahindra,

3 18346

What are the isolation levels possible ?

3 7053

What is meant by index cardinality?

2 6577

What does the RUNSTATS Utility do?

4 20666

What is the purpose of the QUIESE Utility?

1 5170

Un-Answered Questions { MainFrame }

What is amode(24), amode(31), rmode(24) and rmode(any) (applicable to only mvsesa enterprise server) ?

1213

explain in brief why do vsam take more disk space than other utilities?

1096

in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?

1205

distinguish between terminating a program through seton lr and return?

1102

Can you define ppt and what are its uses?

1071

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

2345

if there is a module object , how to find the program object for this module object.Assume the module object name and program object name is not same.

2632

Is db2 a mainframe database?

1001

when do you use f-spec. Continuation line ?

1712

different type of cursor?

1051

explain how many ways you can load data in a vsam cluster?

1046

What is psbgen process?

1162

What Is The Error If We Don't Get Login Screen?

1076

Define an associator in adabas?

961

What is the cics command that is used to access current date and time?

1121

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