5. Database design often involves decisions about the storage of attributes. For example a Telephone Number can be stored as a one attribute or split into three attributes (one for each of the three hyphen-delineated groups of numbers in a Telephone Number (XXX)-XXX-XXXX, i.e (123)-456-7890). However, Telephone Number is usually stored in one attribute. The decision is usually based on how the database will be used. This exercise asks you to think about specific situations where dividing the Telephone Number is useful. List and describe the different situations, give examples.
5. Database design often involves decisions about the storage of attributes. For example a Telephone Number can be stored as a one attribute or split into three attributes (one for each of the three hyphen-delineated groups of numbers in a Telephone Number (XXX)-XXX-XXXX, i.e (123)-456-7890). However, Telephone Number is usually stored in one attribute. The decision is usually based on how the database will be used. This exercise asks you to think about specific situations where dividing the Telephone Number is useful. List and describe the different situations, give examples.
Chapter2: Database Design Fundamentals
Section: Chapter Questions
Problem 11RQ
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Transcribed Image Text:Part 3
5. Database design often involves decisions about the storage of attributes. For example a Telephone Number can be stored as a one attribute or
split into three attributes (one for each of the three hyphen-delineated groups of numbers in a Telephone Number (XXX)-XXX-XXXX, I.e
(123)-456-7890). However, Telephone Number is usually stored in one attribute. The decision is usually based on how the database will be used.
This exercise asks you to think about specific situations where dividing the Telephone Number is useful. List and describe the different situations,
give examples.
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