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Answer Posted / mohi
Export and Import Commands works for VSAM DS and Alternate Indexes. Export command is used to take BACK UP diff. VSAM DS and Import Command is to restore file to proper device.
Same process can be using Reqpro, but diff. is
Repro works for both VSAM and Non-VSAM DS.Export and Import Commands works for VSAM DS.
Repro backs up only logical records.Export backs up logical records and also attributes and Import redefines with attributes and reload the records.
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What is a ca split?
we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.
in a cobol select statement, can you tell what is the organization for a ksds?
What are the different commands used in idcams for vsam?
State the differences between vsam and non-vsam files?
How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?
explain in brief how you can create a vsam file?
what are s0c1, s0c4, s0c5, s0c7 abends?
How is record management performed in vsam?
what do you mean by a upgrade set in vsam?
What is the use of access method services in vsam?
Is it slower if you access a record through alt index as compared to primary index?
explain the information contained in ci
What is a ci split?
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.
