Consider the following table in a relational database.www.wLast NameSmithRankRoomShiftManagerMorningAfternoon234JonesSmithCustodian33Custodian33EveningMorningDoeClerical222According to the data shown in the table, which of the following could be candidate keys of the table?a) {Last Name}b) {Room}c) {Shift}d) {Rank, Room}e) {Room, Shift}

Candidate key is the set of attributes which can refer each row uniquely in table

Answered: According to the data shown in the…

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According to the data shown in the table, which of the following could be candidate keys of the table?

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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Concept explainers

Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.

Question

Consider the following table in a relational database.
www.w
Last Name
Smith
Rank
Room
Shift
Manager
Morning
Afternoon
234
Jones
Smith
Custodian
33
Custodian
33
Evening
Morning
Doe
Clerical
222
According to the data shown in the table, which of the following could be candidate keys of the table?
a) {Last Name}
b) {Room}
c) {Shift}
d) {Rank, Room}
e) {Room, Shift}

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