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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Explain the function of entry-sequenced data set?
why do we use vsam file thn seqential files ?
How can you create a VSAM dataset? Can you write a JCL for it?
Define base cluster?
What are the distinctive features of a ksda, key sequenced dataset?
What is the meaning of VSAM RETURN-CODE 28?
Explain the index set?
In vsam at the cluster creation for KSDS FREESPACE parameter is required but for ESDS FREESPACE parameter is not required ?
Would you specify FREESPACE for an ESDS?
If FSPC(100 10 is specified does it mean that both the control interval and control area will be left empty because 100 % of both CI and ca are specified to be empty?
What is the index set?
How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?