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 |
In a file(PS), we dont know how many records are there. requirement is divide half n half the records n insert into 2 another files(PS).
The first VSAM file V1 has 2 fields A and B . There is a DB2 file which has fields E and f. We need the fields A, B , E and F to another VSAM file called V2. Kindly mention the logic in procedure division in cobol..
What is the biggest disadvantage of using a vsam dataset?
How vsam datasets are cataloged?
What is a path?
what is the difference b/w sequential and ESDS
What is the utility program closely associated with VSAM?
Is it slower if you access a record through ALT INDEX as compared to Primary INDEX? Why?
1. delete is not possible in esds. why? 2. i have 10 records in a esds file and i want to delete only 1st record ..then what i have to do?.. it will not affect any sequence of the RBA. 3. why open extend is not possible in rrds vsam file?
in a cobol select statement, can you tell what is the organization for a ksds?
Explain the biggest disadvantage of using a vsam dataset?
Explain the process in which flat files are converted into vsam files?
COBOL 
