Answer / tulasi harideep

LF doesn't hold any data it is just an access path.Data is present in a physical file which is shown by a logical file based on its key and access paths.When there is no data in PF we cant see any data in LF as well.

Hope you got my answer

Why we create the Physical File Member?

5 Answers  

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

3 Answers   Accenture, Cognizant, eFunds,

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

2 Answers   Cap Gemini,

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When we use any keyword like FIFO,LIFO, at file level but whenever we check by runqry we couldn't find answer in FIFO,LIFO,FCFO etc so how we check the answer.

2 Answers  

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How to read a PF in reverse(from last rec to first) using CL?

3 Answers   HCL,

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How to retrieve a physical file after deleting that?

0 Answers  

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

3 Answers   Four soft,

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How many maximum record format a logical file have?

0 Answers  

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

2 Answers   Four soft,

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Suppose if a physical file is having 1000 records, but i deleted 500 records from it. Here the concern is can the size of the file changes or it remains the same... kindly help me out with thorough xplanation.... Thanks in-advance...

6 Answers   ABC, TCS,

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Can anybody tell why Journalling is compulsary before Commitment Control?

2 Answers  

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What is the primary file?

0 Answers  

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