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DB400 Interview Questions
Questions Answers Views Company eMail

how can we write LF using flatfile.

9 16161

what is the difference between adding keys & constraints into a phisical file

HSBC,

4 8401

what is the difference between adding keys & constraints into a phisical file

HSBC,

6 11599

How we can't update join logical files?

10 19515

I want to change the attribute of field or want to add new field in existing PF but condition is format level identifier should not change, is it possible?

Mind Tree, TCS,

9 18798

WHAT IS THE DIFFERENCE BETWEEN 'COLHDG' AND 'ALIAS'?

Accenture,

5 16749

YOU CAN DELETE THE RECORD SPACE PERMENANTLY IN PHYSICALFILE THROUGH CL?

4 9592

can any one pls tell me some differences between a LF and command OPNQRYF?

Accenture, Cognizant, eFunds,

3 9602

How to insert more than one record to a pf at a time?(Bulk insert to a pf)

9 16327

how to see number of logical files depending on a pf?...can we declare more than 20 logical files from a single pf? is it possible

ocbc,

4 7141

Define interactive jobs and batch jobs

6 11306

pls anyone explain about compile time array,pre run time array run time array

4 13844

Q.1 how to implement the commitment control. 2.how to control commitment control from external program.

IBM,

7 18076

Which keyword is used both in subfile and subfile control record format of a DSPF?

8 13301

CRTDTA AND CRTARA should be used along with?

2 6060


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Un-Answered Questions { DB400 }

What is the primary file?

345


How to update physical file using logical file with example?

332


How to index LF by relative record no (RRN)

2520


What is the batch job?

343


Can we concatenate fields in physical file? If yes how can we do?

360






How many maximum record format a logical file have?

354


Suppose I have a pf, it contains 5 members, how to access particular member data from logical file? What is the use of member in pf?

398


How to know logical file belongs to which physical file without source?

356


When we create a pf and did not fill up maint parameter, then by default which access path will the system take & why?

351


What is the difference between access path and open data path?

362


How to retrieve a physical file after deleting that?

344


Where the QTEMP library will get created? if the the answer is QSYS, then howcome more than one job can create same library name(QTEMP) in QSYS? what is the uniqueness of QTEMP? For example, run the below command in different workstation WRKOBJ QSYS/QTEMP And take 8 in the option to check the description. both will have different info. so where(which LIB) exactly the QTEMP is stored?

6703


I have physical file with 100 records,there is no any duplicate records in this pf.based on this pf one logical file I have used.but this lf is viewing only 80 records only of that pf?what is the reason for this?

385


What is the interactive job? What is the batch job?

349


Last statement of any rpg program is lr?

382