Database Concepts (7th Edition)
Database Concepts (7th Edition)
7th Edition
ISBN: 9780133544626
Author: David M. Kroenke, David J. Auer
Publisher: PEARSON
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Chapter 5, Problem 5.2RQ

Explanation of Solution

Attribute:

In database management system, an attribute refers to a database field. It also refers to a database component.

  • Generally columns in the table are called as an attributes.

Steps for transforming attributes into columns:

  • Initially create a table for each entity.
  • Each attributes in an entity must have a column in the corresponding table.
  • Specify one column as the primary key for that table.

Column properties:

While transforming attributes into columns, it should specify some column properties. They are:

  • Null status
  • Data type
  • Specify data constraints
  • Default value

Example:

Consider the example of transforming attributes into columns is as follows:

Attribute:

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