difference between vsam and database tables

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More VSAM Interview Questions

is it slower if you access a record through alternative index as compared to primary index?

Would you specify FREESPACE for an ESDS?

Do primary key values have to be unique? Do alternate key values have to be unique?

What is a cluster?

we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.

Using alternate indexes in batch program?

explain how can you initialize a vsam file before any operation?

what is the use of reuse in vsam?

What is the purpose of having vsam data space?

Do all versions of the GDG have to be of the same record length ?

If you wish to use the REWRITE command haw must the VSAM file be opened?

What is the meaning of the DEFINE MODEL parameter?

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