Answered: employee (personname, street, city)…

employee (personname, street, city) works (person_nате, соmpany_лате, salary) соmpany (companyлате, сіtvy) Figure 2.17 Employee database.

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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Question

Consider the employee database of Figure 2.17. What are the appropriate primary keys?

employee (personname, street, city)
works (person_nате, соmpany_лате, salary)
соmpany (companyлате, сіtvy)
Figure 2.17 Employee database.

Organized collection of structured information, or data, typically stored in a computer system.

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