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What is the difference between PS file and VSAM file?
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Answer / ram
In physical sequential file records are stored in terms of
blocks,where as in VSAM files records are stored in
ControlInterval(C.I).
| Is This Answer Correct ? | 51 Yes | 3 No |
Answer / manjula
PS files can be created on tapes while the VSAM files
cannot. Also, VSAM files can have ALTINDX(alternate index)
while no such facility exists for PS files.
| Is This Answer Correct ? | 23 Yes | 3 No |
Answer / tanushree
Storage capacity of VSAM file is more than that of NON-Vsam file.
in VSAM if tale 1 trk => 1+1*122=123 extent allocation.
where as in NON-VSAM, for 1 trk => 1+1*15=16 extent allocation.
| Is This Answer Correct ? | 15 Yes | 0 No |
Answer / avinash kumar techrel
ps file is used for writing a program and storing data.but
vsam used only for storing data.ps file accessed
sequentially.but vsam accessed sequentially,randomlyand
dynamically.
| Is This Answer Correct ? | 10 Yes | 1 No |
Answer / vivek
VSAM files are used when we want to store data based on
some key fields(Eg: KSDS)
access method is indexed.
NON VSAM files like PS are used when we want to store data
which is not unique and also the access is sequential.
| Is This Answer Correct ? | 7 Yes | 2 No |
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