Question: (10 points) (Exercise 4.5) Discuss the differences between the candidate keys and the primary key of a relation. Explain what is meant by a foreign

(10 points) (Exercise 4.5) Discuss the differences between the candidate keys

(10 points) (Exercise 4.5) Discuss the differences between the candidate keys and the primary key of a relation. Explain what is meant by a foreign key. How do foreign keys of relations relate to candidate keys? Give examples to illustrate your

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

1. Identify the foreign keys in this Schemal. Explain how the entity and referential integrity rules apply to these relations. Hotel (hotelNo, hotelName, city) Room (roomNo, hotelNo, type, price)...

QUESTION 1 a ) Describe with the aid of a diagram the difference between external, internal and conceptual schemas. b ) Define the following terms: ( i ) Meta - data ( ii ) Data redundancy c )...

QUESTION 2 [25 Marks] Discuss the differences between the candidate keys and the primary key of a relation. (4 Marks) Describe the meant by a foreign key. How do foreign keys of relations relate to...

Section A answer all, 50 marks What is a data model? Discuss the main types of data model. Compare and contrast the two-tier clientserver architecture for traditional DBMSs with the three-tier...

need help with b and c The following tables form part of a database held in a Relational Database Management System Employee (empID, fName, 1Name, address, DOB, sex, deptNo) Department (deptNo,...

a. Discuss the three main service models of cloud computing b. Discuss the differences between the candidate keys and the primary key of a relation. Explain what is meant by a foreign key. How do...

Discuss the differences between the candidate keys and the primary key of a relation. Explain what is meant by a foreign key. How do foreign keys of relations relate to candidate keys? Give examples...

OUESTION 3 a ) What are the different types of database end users. b ) Describe the difference between a database and a table? c ) Discuss the roles of the following personnel in the database...

need help with these questions. The following tables form part of a database held in a Relational Database Management System: Employee (empID, fName, 1Name, address, DOB, sex, deptNo) Department...

The following questions concern the accounting principles and procedures applicable to a private not-for-profit organization. Write answers to each question. (a) What is the difference between...

Garza Construction Co. erects a silo (a grain storage facility) on Reeves ranch. Garza also lends Reeve funds to pay for the silo under an agreement providing that the silo is not to become part of...

Which of the following would increase the likelibood that a company would increase its debt ratio, other things hell conatant? The company's stock price hits a nee low. An incricase in costs incurrod...

SIMAD UNIVERSITY Class: BACC25 Subject: Islamic Accounting Instructions: a) Follow The Instructions. Midterm Exam Instructor: All Ibrahim Date: 6-4-2022 b) You Have 1.5 Hrs. To Complete This Test. c)...

5-12 The Foremost Composite Materials Company is planning a two-day sales conference for October 1920, starting with a reception on the evening of October 18. The conference consists of all-day...

2. What are the disadvantages of cloud computing? Cloud computing is taking off. The biggest players in the cloud computing marketplace include Amazon Web Services division (AWS), Microsoft, and...

4. Should all firms move toward green computing? Why or why not? Whats too hot to handle? It might very well be your companys data center, which can easily consume more than 100 times more power than...