Answered: In a database, a foreign key is?…

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

Section: Chapter Questions

Problem 1PE

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Transcribed Image Text:PLZ ANS BOTH In a database, a foreign key is? Question 27 options: A data attribute within a table that is also a foreign key in another table A data attribute within a table that is not unique but can be used to distinguish one data record from another data record within that table A data attribute within a table that is a primary key in another table A data attribute within table that is unique but cannot be used to distinguish one data record from another data record within that table A data attribute within table that enables a database to uniquely distinguish one data record from another data record within that table The K_Roger is a regional food store chain that uses a customer loyalty card to collect information about customers' purchase habits. The loyalty cards are free, and the signup process is, frankly, quite lax. As a result, the customer profile data associated with the loyalty cards is riddled with important missing information. From a data quality perspective, the loyalty card data is an example of data that is not Question 28 options: accurate timely unique consistent complete

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