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why do we use vsam file thn seqential files ?
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Answer / vijay
1)Record Insertion inbetween the existing recored is
poosible.
Where as in PS file we can add only at the end
2) we read record in any order
were as in PS it is possible to read from 1st , 2nd ,
3rd... like that
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / rajesh
ps files are stored in tape but esds cannot be stored in tape
and ps file cannot becreated alternate index but esds can be created
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / pramod reddy
ps files can created on tape.but not esds files.
alternate index can be created in esds.but not in ps.
records inserted in seq nd random.but in ps only seq.
| Is This Answer Correct ? | 1 Yes | 0 No |
what is the difference between vsam and dataset how do u create vsam dataset which file you r used?
How can you create a VSAM dataset? Can you write a JCL for it?
what is the meaning of dynamic processing in vsam?
Do all versions of the GDG have to be of the same record length ?
What is the base cluster?
What is the main function of key sequenced data set in vsam?
What is an alternate index and path ?
How many cluster index can have in a table?
can we create PS file using IDCAMS utility?
What is the procedure for running the batch job in mainframe?
Is it slower if you access a record through alt index as compared to primary index?
explain in brief how are different versions of gdg named?
COBOL 
