In the instance of instructor shown in Figure 2.1, no two instructors have the same name. From this, can we conclude that name can be used as a superkey (or primary key) of instructor? IDпатеdepLлamesalarySrinivasan Comp. Sci.FinanceMusicPhysicsHistoryPhysicsComp. Sci.HistoryFinance1010165000Wu121211515190000Mozart4000022222Einstein9500032343El SaidGold6000033456870007500045565Katz58583Califieri620008000076543 SinghCrickBrandtBiologyComp. Sci. 92000Elec. Eng76766720008382198345Kim80000Figure 2.1 The instructor relation.

Primary Key is a column or group of columns in a table that uniquely identify every row in that…

Answered: ID пате depLлame salary Srinivasan…

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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In the instance of instructor shown in Figure 2.1, no two instructors have the same name. From this, can we conclude that name can be used as a superkey (or primary key) of instructor?

ID
пате
depLлame
salary
Srinivasan Comp. Sci.
Finance
Music
Physics
History
Physics
Comp. Sci.
History
Finance
10101
65000
Wu
12121
15151
90000
Mozart
40000
22222
Einstein
95000
32343
El Said
Gold
60000
33456
87000
75000
45565
Katz
58583
Califieri
62000
80000
76543 Singh
Crick
Brandt
Biology
Comp. Sci. 92000
Elec. Eng
76766
72000
83821
98345
Kim
80000
Figure 2.1 The instructor relation.

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