Consider the deletion of record 5 from the file of Figure 13.3. Compare therelative merits of the following techniques for implementing the deletion:a. Move record 6 to the space occupied by record 5, and move record 7 tothe space occupied by record 6.b. Move record 7 to the space occupied by record 5.c. Mark record 5 as deleted, and move no records.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Consider the deletion of record 5 from the file of Figure 13.3. Compare the
relative merits of the following techniques for implementing the deletion:
a. Move record 6 to the space occupied by record 5, and move record 7 to
the space occupied by record 6.
b. Move record 7 to the space occupied by record 5.
c. Mark record 5 as deleted, and move no records.
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