MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

IBM MainFrame (5234)
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MainFrame Interview Questions

Questions Answers Views Company eMail

What is node in db2?

1104

How do I add a column to an existing table in db2?

1091

How to access db2 tables in mainframe?

1107

How do I import data from excel to db2?

1133

How do I add a column to a table in db2?

1162

What is isolation level in db2?

1070

Why do we use cursor?

1166

How to compare data between two tables in db2?

1142

What is lock escalation in db2?

1086

What is the difference between cursor and select statement?

1156

What is difference between alias and synonym in db2?

1202

What is host variable in db2 cobol?

1140

How do I import a csv file into db2?

1043

What is image copy in db2?

1080

How do I copy a table in db2?

1061

Un-Answered Questions { MainFrame }

I understand Join always perform better than subqueries. Then what is the advantage/use of Subqueries/correlated subqueries etc.,in DB2 programming.Please explain.

2118

can you display a empty subfile?

1285

What is mainframe application testing?

1109

what is a composite key?

1756

Explain host variables?

1049

Explain the catalog?

1041

What is the difference between a binary search and a sequential search? What are the pertinent cobol commands?

1156

What is the Difference between command attention key and command function key ?

1434

Can you tell me how can you find out the # of rows updated after an update statement?

1153

How do you define a variable of comp-1 and comp-2?

1263

how can you check for a records existence without causing and i/o (chain/read)?

2163

in order to execute step2 a job after a return code of 8 in step1, what condition you will code in step2?

2803

Explain psbgen process?

1273

what is an online rpg?

1327

List the various advantages of using jcl language?

1526

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