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What is the use of VSAM files? How to read this ?
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Answer / y@$w@nth
VSAM stands for Virtual Storage Access Method.it organizes
the records in a file in different formats for faster
accessing. various vsam datasets(files) structures are
KSDS(Key Sequential Dataset)
ESDS(Entry Sequenced Dataset)
RRDS(Relative Record Dataset)
we can read the Vsam Files
sequentially,randomly,dynamically(sequential,random) based
on the organization it refers.the following are the access
methods that we can perform on vsam datasets(files)
KSDS(sequential,random,dynamic)
ESDS(sequential,random)
RRDS(sequential,random)
| Is This Answer Correct ? | 13 Yes | 0 No |
Answer / dinesh
VSAM (or) VIRTUAL STORAGE ACCESS METHOD. it is faster access
to data, when comparing other access methods by the way of
Data sets ORGANIZATION. we can able to insert a records in
good way.records are physical removed while we deleting the
records and we can get the free space.
| Is This Answer Correct ? | 13 Yes | 1 No |
Answer / raaj
vsam is an accessing and storing method ,which provides an
efficient way of storng and accessing file data.
| Is This Answer Correct ? | 4 Yes | 1 No |
Do all versions of the GDG have to be of the same record length ? is it possible to ovverride the dcb of the model dataset?
If we are using empty VSAM file, we can see this empty file by using FILE AID tool. How can we open empty VSAM file if you are using in Program..?
How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?
Is CA(Control Area) is part of CI(Control Interval)
Using alternate indexes in batch program?
in a cobol select statement, can you tell what is the organization for a ksds?
FREESPACE can be specified for which type of cluster? a.LDS b.RRDS c.ESDS d.KSDS
What is SHAREOPTS ?
What is the use of access method services in vsam?
is delete operation supported in an esds? Is rewrite operation possible in esds?
What are the optional parameters to the input dataset While loading the empty cluster with the data records?
What is the maximum number of Alternate Index ???
COBOL 
