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IBM MainFrame Interview Questions
Questions Answers Views Company eMail

How do you check for a null value in a db2 column?

2 11788

Have you used comp and comp-3 in your project? And how?

IBM,

2481

Why we are using comp and comp-3 in real time projects?

IBM,

4 15171

Have you used the sort in your project?for this type of questions any working on real time project give the eg. with real time scenario.

IBM,

2433

How to code fscode 10 in cobol program? Where yoy code in your pgm?give ans for the question.

IBM,

2 10444

how to check whether the open command of a sequential file is successful? or not?

CSC, IBM,

2 14490

Hi Everyone... Under the Logical files, when am working on multiple rec format logical file, I have joined two pf's using the multiple record format logical file concept, but when i run queried the LF only the first mentioned pf records are reflecting and I am not able to see any of the field records specified under the second pf. Kindly let me know whats the reason behind this. Below is the str of LF., R rec PFILE(LOGICAA) CUSTNO CUSTNAME BILL K CUSTNO R rec1 PFILE(LOGICAA1) CUSTNO ADD K CUSTNO .....

2364

Our issue is there seems to be a disconnect, or no link, between our SELECT statement and our SD. We had SELECT SORT-FILE and SELECT SORT-FILE ASSIGN TO SORTWRK. ASSIGN TO SORTWRK1 SORTWRK2 SORTWRK3 SORTWRK4. with SD SORT_FILE RECORD CONTAINS 7833 CHARACTERS. In either case, at run time, the system ignored our SORTWRK# DD statements and allocated 16 sort works with the SORTWK## naming convention. Any ideas why the system does not recognize the connection? We do not even need the SORTWRK DD statements. Thanks

2963

Hello, I have 3 years of exp as a mainframes tester in a leading IT company, now am looking to change my company. Could you please let me know, what are the interview questions/topics i should prepare. Your suggestions are truly valuable for me :) Thanks !!

1939

How to submit multiple jobs. These jobs are members in PDS. The second job should run if the first job runs successfully and so on.

1 10312

File not opened because library is *PROD and debug is UPDPROD(*NO). ? what may be the reason? how to solve it..?

Infosys,

2934

what is the sortcard for comparing two files with a field key and get the duplicates in onefile and noduplicates in another file

Virtusa,

3 13744

Hello Guys, I have 1+ Year Experience in MAINFRAME TESTING. After 1 Week I have an Interview With a Company on Mainframe Testing. Please Could You Guys Please Suggest me What Sections Should I prepare ?? ___Tell Me the Topic Or Appropriate Site & Links. ?? ---------------Thank You

IBM,

2776

In your JCL, run the even numbered steps if date is even and run odd numbered steps if date is odd . Where do you generate the date ??in cobol or JCL ??

CSC,

2 12289

How to find the length of variable length copybook using fileaid ??

CSC,

1 13501


Un-Answered Questions { IBM MainFrame }

Explain the device independent method to indicate where a record is stored?

916


What is the difference between fixed length and variable length records?

872


Is the order of the when clause important in an evaluate statement? Is the order of the when clause significant in an evaluate statement?

950


What is the use of value function?

1147


What is meant by union and union all?

1008


How many bytes does a s9(7) sign trailing separate field occupy ?

1122


What makes vrrds different from vsam?

1237


How an empty file to be checked?

1045


What are the utility programs in jcl?

1157


What are the different types of table spaces?

990


What are the access method services used in vsam?

1028


How do I delete a table in database?

1016


What is the difference between perform … with test after and perform … with test before?

1439


Explain sorting techniques in cobol program? Provide the sort file definition, the sort statement, its syntax and meaning

1092


Which component is responsible for processing sql statements and selecting access paths?

1127