IGNOU MCS 23 2010 2011 - Compare and contrast the features of sequential, indexed and hashed fi

Question

Compare and contrast the features of sequential, indexed and hashed file organizations. Consider the problem(ii) in this question; propose a suitable file organization for each of the relation created. Justify your selection of file organization.

28 Oct 2017

Answer :

Word Count : 287

Sequential file organization: A sequential file is designed for efficient processing records in sorted order based on some search key.

A.Records are stored in sequential order according to search keys value.

B.A search key is any attribute or set of attribute, it may or may not be primary key.

C.To access records easily & fastly pointer are used to chain records.

D.To minimize no. of block accesses, we store records physically in search key order.

E.A sequential file organization allows records to be read in stored order.

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