Database Concepts (8th Edition)
Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
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Chapter 2, Problem 2.8RQ

Explanation of Solution

Relation:

  • Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows.
  • Although relation is defined as the two-dimensional table of data, not all the tables are considered as the relations.
  • For example, let’s consider the bank database
    • In this database, the “Customer” table stores the data about customer in the primary key column with the attribute “customer_id”.
    • At the same time, the “Accounts” table also holds the data about bank accounts and associated customers.
    • Therefore, these two tables such as “Customer” table and “Accounts” table can be linked together through the “customer_id” column to determine the relation that is present with the data from both the tables.

Tuple:

  • In the relational model, data are organized in tables, which consist of rows and columns...

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