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DB400 Interview Questions
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Hi, Please give the answer to this question? I have Phisical 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?Please give me answer?

IBM,

4 6147

How to know the perticular record in pf with out reading?

Cap Gemini,

2 6284

how can i know logical file belongs to which physical file without source?

Cap Gemini,

3 16101

what is open data path? and what is the diff b/w access path and open data path?

Cap Gemini,

3 19555

how to update physical file using logucal file with example

Wipro,

1 4502

how to update physical files using normal logical file

4 11847

one physical file can have how many max of logical files? what is the primary file?

Four soft,

3 10325

what is the intractive job? what is the batch job ? how to change the batch job to interactive job?

Four soft,

2 7382

what is the purpus of the chain and setll and setgt ?

Four soft,

2 10196

A pf containing 100 records... my query is how to display from 11th record in the pf?

3 8929

hi iam very new to as400. i had created one physical file can any one tell command to enter data in to that

Encore,

9 19730

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?

2 6313

can we concate fileds in physical file? If yes how can we do?

Patni,

5 8526

1. How can I create a LF using crtlf command based on a particular member in a multimember PF? Where I have to specify the member name? 2. How to differentiate between the types of join from a Join logical file DDS. Is it possible to have different types of Join Logical files? 3.Any performance difference between Opnqrf and Embedded SQL? When I should prefer Opnqryf and when SQL? 4. I know access path is the path chosen by the program to retrieve data. It can be of keyed access path or arrival sequence. *IMMED- *IMMED description says access path is updated each time record is added or deleted from a member. - What is updating here? *REBLD - The access path is completely rebuilt each time a file member is opened. The access path is maintained until the member is closed, then the access path is deleted. - I am not able to understand this completely. Could anyone explain these more clearly? 5.What is the purpose of using activation group. I know it is a resource allocator, but other than this any other benefits of using an activation group?

IBM,

2 8511

how to know total no of records in pf with out using sql??????

3 8925


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Un-Answered Questions { DB400 }

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

203


How to index LF by relative record no (RRN)

2365


How many maximum record format a logical file have?

209


Last statement of any rpg program is lr?

234


What is open data path?

204






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?

6313


What is the purpose of the chain and setll and setgt?

197


How to know the particular record in pf with out reading?

233


How to change the batch job to interactive job?

229


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

222


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?

225


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

224


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

236


How to update physical file using logical file with example?

201


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

226