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've one sequential file, That file contains millians of Junk & CHAR recoreds example File 1 ,,,,,...,,,.....,.,.INFOSYS.....,,,,,,,,,,,WIPRO..........., ,...,..,. My questions is : I want omit the 44th posstion to 4 CHAR (WIPRO) remaining things I want output file (including Junk CHAR also)... How can we slove this problem & give me a syntax. Please provide the result as soon as possible.

CTS,

5 11271

i have two flat files.i want to select one record from that file by using jcl.for example file1 contains emp no,name,joining date. file2 has same details.emp no is primary key. i will give empno.that emp details send to outfile.please let me know if any one knows it.give sample code.

TCS,

1 7441

i would like to know under what circumstance the object will get locked on AS400.

IBM,

5 11496

How to find in aparticular step how many versions a paricular gdg base have?

TCS,

4 19343

Can we use an equated value as operand for an MVC instruction? Reason for the same

IBM,

8 13794

What are db2 error codes -305 and -407. What is the difference between these 2 error codes ?

1 7973

what r drawbacks of OPM? Why do we go for ILE RPG?

1 10920

How can I find the maximum value of a field in a file while reading the file dynamically? without using sort function. Suppose i have a file with fields Timestamp, description, teamname, teamnumber.. i have read the file till end and find the maximun value of timestamp which is not in sorted order.. can we use function max(timestamp)?

CGI,

1 13079

What are the steps to retrieve the records from Journal file...?

1 11829

I have the transaction name for cics screen.. With the transaction name, how will I find the cics program written for the transaction and BMS map program also...

CGI,

4 16492

5 rows are inserted to a DB2 Table. Next 3 of those are updated, then a rollback is issued. What would happen when the rollback is issued?

2 6365

if there is a table with huge number of records and if i want to extract only first 3 records from the table, what query i have to provide to retreive first 3 records

UST,

4 8255

Is it possible to mutliply a comp variable with an comp-3 variable. Will there be any error if i do it?

IBM, UST,

3 10289

If i have defined an temperory dataset in step2, how can i call back or use the same dataset in step5 of the same job

UST,

4 10254

i hav created a program and moved to production but failed to create the table which is been used in the program. the program shows error as soon as it is moved or installed in production or shows error during its runtime. what is the sqlcode for this error

UST,

3 7382

Un-Answered Questions { MainFrame }

What is the main function of linear dataset?

1152

What is the syntax for creating a table in the db2 database?

1152

Is it possible to port existing applications from the mainframe or os/2? Are there major changes required to do this?

972

With the use of an alternate index, how is a VSAM file accessed?

1149

What is PL/I?

1456

Explain is it possible to code goto statement in natural? If yes please provide the syntax of the same?

1051

Can we insert update delete in view?

1032

What is length is cobol?

1165

What are the different parameters that are used in vsam?

1204

What is difference between bind by copy and bind by reference?

2558

What are the different data types in cobol?

1523

a dd statement has 2 types of parameters. Name them?

1181

What is temporal table in db2?

1105

Give some examples of command terminators?

1327

Is ibm db2 open source?

1134

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