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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 |
can any one tell "in esds in what structure records will stored?"
is it required that primary key values have to be unique? Do alternate key values have to be unique?
There are at least seven IDCAMS commands; name and explain each of them ?.
What are the different commands used in idcams for vsam?
How many buffers are allotted to VSAM KSDS and ESDS?
What is speed parameters in define cluster command?
What are the three levels of definition for the VSAM DEFINE?
what is a Base Cluster?
what is the meaning of each of the values in shareopts(2 3)?
How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?
HOW TO SORT RECORDS IN VSAM FILE?
to use the rewrite command, how should the vsam file be opened?
COBOL 
