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what is the drawback of vsam dataset??
a.execution slow.
b.free space.
c.independent storage device.
d.none of the above.
let me know the answer with reason.
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Answer / shenbagasundari pilavadian
b.free space
Because, it increases the disk space requirements of system.
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Answer / e s hudders
The question is too vague because there are 4 different types of VSAM data sets. Eliminating Linear Data Sets (LDS) that are used by DB2, the other types of VSAM data sets have different purposes and can be used to substitute previous access method - KSDS replaces ISAM, RRDS replaces DAM and ESDS replaces SAM. There are many advantages to using VSAM especially when compared to the older access methods that run below the line. As far as free space and splits, this applies to KSDS and you need to compare it to its equivalent how ISAM handled new record insertions. So, personally although things like free space takes up more disk space is not as important as having the capability to insert records in a file and to be able to process it sequentially as well as direct. The resulting splits are the price of splits can occur but again compared to ISAM, this is not as costly.
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What is an alternate index?
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FREESPACE can be specified for which type of cluster? a.LDS b.RRDS c.ESDS d.KSDS
is there any lock for vsam file so that no one can update the vsam file ?
Would you specify freespace ce for an esds?
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Explain the difference between lds and esds?
what's the device independent method to indicate where a Record is Stored?
why ci and ca splits are not possible in esds and rrds?
what do you mean by the repro command?
How does control intervals and control areas related to each other?
What is File Status in VSAM?
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