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.
2014What are the optional parameters to the input dataset While loading the empty cluster with the data records?
IBM,
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What is control area?
what do you mean by idcams? Explain its purpose?
What is the difference between lds and esds?
Differentiate between control interval (ci) and control area (ca)?
What is a base cluste?
What is the use of lds (linear data set)?
explain in brief how you can create a vsam file?
What makes vrrds different from vsam?
there are seven idcams commands in vsam. Can you name and explain each of them?
Define free space?
explain the differences between vsam and non-vsam files
What is a lds (linear data set)?
Explain the process in which flat files are converted into vsam files?
What is the main function of key-sequenced data set?
what is the meaning of dynamic processing in vsam?