Question: In an entity relationship model ( ERM ) , attributes are characteristics of entities. Which of the following statements best describe an optional attribute?

In an entity relationship model (ERM), attributes are characteristics of entities. Which of the following statements best describe an optional attribute?

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!

Q:

For this milestone, you will frame the entity relationship model (ERM) and define the entities and attributes for the business. Your next steps will be to normalize your entities, define primary and...

Q:

Prompt: In Milestone One, you read the final project scenario and then gathered the business requirements based on the goals, objectives, and user and business needs. For this milestone, you will...

Q:

Prompt: In Milestone One, you read the final project scenario and then gathered the business requirements based on the goals, objectives, and user and business needs. For this milestone, you will...

Q:

For this milestone, you will frame the entity relationship model (ERM) and define the entities and attributes for the business. Your next steps will be to normalize your entities, define primary and...

Q:

IT 235 Milestone Two Guidelines and Rubric Overview: Database design is an integral step in the overall development of a database solution; a bad design can lead to many issues and problems with...

Q:

SCENARIO: Cougar Pizza Pies is a new concept in pizza delivery. Dylan and Samantha Morgan have been serving high-class pizzas for over 20 years but have decided to take a new direction with their...

Q:

1. When configuring a relational database to show that a PROFESSOR can to teach multiple CLASSes, and that a CLASS can have only one PROFESSOR, a simple line is not enough for design reviewers to...

Q:

IT 235 Milestone Two Guidelines and Rubric Overview: Database design is an integral step in the overall development of a database solution; a bad design can lead to many issues and problems with...

Q:

IT 235 Milestone Two Guidelines and Rubric Overview: Database design is an integral step in the overall development of a database solution; a bad design can lead to many issues and problems with...

Q:

Describe the Entity Relationship Model (ERM) components that consists of the entities, attributes, relationships, and constraints of the project. You also need to identify the mandatory and optional...

Q:

If your professor has assigned these, go to Mymanagementlab.com for Auto-graded writing questions as well as the following Assisted-graded writing questions: Is there one best "style" of management?...

Q:

QUESTION FOUR The following information relates to Hydro Limited, who will commence business on 1 January 2021. They are preparing their budget and will detail the projected activities for the first...

Q:

Simplify each expression. Write your answer without negative exponents. ( a ) s 2 0 0 2 s 3 2 ( b ) s 3 a 3 b 3 ds 4 ab 2 d 2 ( c ) S 3 x 3 y 2 y 3 x 2 y 2 1 y 2 D 2 2

Q:

Emily is trying to decide between investing $1,000 or $1,500 at the beginning of each year for the next 40 years into a retirement account yielding 10.78%. After 40 years, how much extra money will...

Q:

Draft a proposal for a risk assessment exercise.

Q:

Understand the business case for equal opportunities and be able to identify how it applies in differing organisations.

Q:

Assess the implications of putting a policy into practice and evaluating the success of initiatives in this area.