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What is VERIFY command ? when do you use this command??
What actually it does ??
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Answer / abhushan
The VERIFY command is used to close those files that are
kept open after the abnormal termination of
the file.
It also brings the index component in sync with the data
components and updates the catalog
| Is This Answer Correct ? | 33 Yes | 7 No |
Answer / ravikumar
This parameter is used to verify the physical existence of a
vsam file and close the file if it is not previously closed.
The syntaz is VERIFY FILE(<ddname>)
or
VERIFY DATASET(<dataset name>)
| Is This Answer Correct ? | 35 Yes | 11 No |
how many ways can we open i vsam file ? like print ch ids (/) is thre any other way to open the vsam file please can any one answer ?
On which dataset you can have alt index?
Syntax of AMS modal commands ?
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.
What is the purpose of idcams?
Explain the process in which flat files are converted into vsam files?
How do you calculate record size of an alternate cluster? Give your values for both unique and nonunique.
What is a VSAM split?
What is SHAREOPTS ?
is it slower if you access a record through alternative index as compared to primary index?
What is the main function of key-sequenced data set?
explain how can you initialize a vsam file before any operation?
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