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what is the use of reuse in vsam?
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Answer / sowmya
while doing repro, if we use 'resuse' parameter ,the data
already stored in outputdataset will be logically deleted
and replaced by the data in inputdataset
| Is This Answer Correct ? | 13 Yes | 0 No |
A cluster can be used again and again
as a reusable cluster.
When u open the data set in output mode
all the existing records are logically deleted
- A cluster can't be reusable if
-- KEYRANGE parameter is coded
-- An Alternet index is built for it
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / sridhar
while compiling the program repeatedly the same data set
name can,t be used.So in order to use same name reuse
command is used.In each time we compile it makes dataname
as new file.
| Is This Answer Correct ? | 0 Yes | 1 No |
Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.
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