DB2 Interview Questions
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run jcl for cobol+db2 pgm?.. //jobcard //step001 exec pgm=ikjeft01 //systin dd * DSNSYSTEM(--------) RUN PROGRAM(MYPGMNAME) PLAN(-----), LIB(-------), PARMS(------) /* WHAT WILL U GIVE INSIDE THE BRACKETS... WHAT IS PLAN,PACKAGE,BIND?..PLAN N PACAKGES ARE GENERATED BY ?...

IBM,

3782

How can you compare table column after update and before update?

Satyam,

5 8209

SQLCODE = -199, ERROR: ILLEGAL USE OF KEYWORD CHAR, TOKEN KEY was expected

10724

what is db2 restart?

1684

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

HeadStrong,

1928

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

HeadStrong,

1 8587

Can a Db2 table data be retrived through JCL?

4 7139

Suppose there are many duplicate records in a Db2 table. What is the query to retrive only duplicate records?

4 7752

Suppose pgm A calling Pgm B .Pgm B has some Db2 program. at the time of compilation should plan and package will be created for both A and B or only B? What is the concept?

2 6806

in column y record abc.v abc.s xyz.j abc.h i wan only abc columns how to retrieve thi records

IBM,

2 5144

In a Cobol-DB2 program, I am fetching rows from 4 tables using cursor and then based on the a field present in that table, It processes the information accordingly..for example stat-c is one digit field..if stat-c is 'D' then the a row is deleted from table and written those details in to a file. If the stat-c is 'U' then a row is updated (hardcoded what to update)in a table and written those details in to a file. If the stat-c is 'I' then a row is inserted in a table and written those details in to two files. The issue is i have to include the intermediate commits. When an abend occurs, due to commit statement db2 tables will be saved, But there will be lose of file contents. When we resubmitting the job associated with this program there will be insert ,update and delete anomolies to avoid that what measures could be taken?. The intermediate commit is nothing but issuing commit after massive inserts, updates and deletes(sum of 500actions)

2 7561

Hi All, In a Cobol-DB2 program, I am fetching rows from 4 tables using cursor and then based on the a field present in that table, It processes the information accordingly..for example stat-c is one digit field..if stat-c is 'D' then the a row is deleted from table and written those details in to a file. If the stat-c is 'U' then a row is updated (hardcoded what to update)in a table and written those details in to a file. If the stat-c is 'I' then a row is inserted in a table and written those details in to two files. The issue is i have to include the intermediate commits. When an abend occurs, due to commit statement db2 tables will be saved, But there will be lose of file contents. When we resubmitting the job associated with this program there will be insert ,update and delete anomolies to avoid that what measures could be taken?. The intermediate commit is nothing but issuing commit after massive inserts, updates and deletes(sum of 500actions)

1 4693

In my table having 100 Rec. How can I delete the 7th row?? (we don't know what is data inside the table)

IBM,

9 13415

Shall i use this query to retrieve first 4 records, Select empno, sal from emptbl where empno < 5. like this can we fetch first 100 records?

3 6191

Select empno, sal from emptbl where empno < 101.By this query can we fetch first 100 recs? where empno is primary key.It won't throw -811 error? if it wont,then what is use of cursor technique while fetching first 100 recs. Please need more clarification.

2 5301


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Un-Answered Questions { DB2 }

What is a trigger in the db2 database?

588


Define predicate?

635


Who uses db2?

567


What db2 400?

669


What is the use of db2 optimizer?

601






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

620


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

1644


Explain the contention situations caused by locks?

580


How many databases are there?

584


Which components manage deadlocks in db2?

600


What is the use of with ur in db2?

608


What is the latest version of ibm db2?

728


How would the varchar column remarks defined?

624


B37 abend during spufi?

973


What is precompiler in db2?

579