Question: How do we map inheritance to a relational database? Describe the roles of primary and foreign keys in mapping.

How do we map inheritance to a relational database? Describe the roles of primary and foreign keys in mapping.

Step by Step Solution

★★★★★

3.31 Rating (148 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

Inheritance is a fundamental concept in objectoriented programming where a subclass inherits propert... View full answer

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 Systems Analysis And Design 12th Questions!

Q:

1. A ball is kicked at an initial velocity of 66 m/s. If it takes 7.2 seconds to land, what angle was it kicked at? Use -10 m/ss for acceleration. Leave no spaces between answer and units. Leave the...

Q:

READ THE STORY SIDDARTHA'S DESIRE, then complete the following sentences with 3-5 sentences. 1. Is the Validity of the Work or what is the value of the word PAGHANHANGAD in the work? 2. What is the...

Q:

Do some amendment and enhance the given research paper: Table of Content Abstract..3 Action Research.4 Research Methodology and Design...5 Literature Review: NoSQL Database7 Proposal.7 Iteration 1..8...

Q:

1. Map ERD/EERD to a relational database indicating the relation name, primary key, foreign key and related attributes for each relation. Add appropriate additional field according to the given...

Q:

Entity-Relationship (ER) diagram. The ER diagram should include entities, attributes (if there are less than three specified in the business statements, please add some extra attributes), identifiers...

Q:

Question 1 (15 marks) The relational database below contains two related tables - "Manager" and "Sub-ordinate": Iname 501 Sub-ordinate table: Primary key = Sub -code, Foreign key = Man -code Sub-code...

Q:

Question 1 (15 marks) The relational database below contains two related tables - "Manager" and "Sub-ordinate": name 1688 "Sub-ordinate" table: Primary key = Sub-code, Foreign key = Man -code...

Q:

Q1.a) Based on the business rules, you are expected to construct an Entity-Relationship (ER) diagram. The ER diagram should include entities, attributes (if there are less than three specified in the...

Q:

Notown Records has decided to store information about musicians who perform on its albums (as well as other company data) in a database. The company has wisely chosen to hire you as a database...

Q:

I need some assistance with my project proposal and its overview, my systems analysis and entity-relation diagram(ERD) and overall database creation. I am using Microsoft Visio and MS SQL 2012 as...

Q:

Albinism is an autosomal genetic condition characterized by a lack of melanin production. In humans, it is recessive to normal body pigmentation. If a homozygous man with normal melanin production...

Q:

Device an employee payroll program that uses polymorphism to calculate and print the weekly payroll for your company. There are three types of employees hourly, salaried, and salaried plus...

Q:

12. Prove that a married person with three dependents (including himself) and an income of $12,000 pays more in Social Security tax than in federal income tax. (LO5 )

Q:

What is materiality? Why is it considered a departure from the principles of financial accounting measurement? Is there an economic reason that explains why it is followed? What factors are important...

Q:

What is the purpose of normalization?

Q:

Describe the analysis that is applied to a data model in order to place it in first normal form (1NF).

Q:

Select two of the implementation size user stories you developed in Exercise 2. Develop a set of acceptance criteria for each of these user stories. Data from Exercises 2 Select one of the epic user...

Q:

For its inspecting cost pool, Ellsworth, Inc. expected overhead cost of $ 360000 and 4000 inspections. The actual overhead cost for that cost pool was $ 440000 for 5000 inspections. The...

Q:

One - year Treasury bills currently earn 3 . 2 5 percent. You expect that one year from now, 1 - year Treasury bill rates will increase to 3 . 4 5 percent and that two years from now, 1 - year...

Q:

Sippican Corporation (B) - Assignment Questions Q5. Estimate the resource demands from Knights forecasted sales and production plan in Exhibit 1. (Rubric #3) Q6. Based on the revised cost and...