18 Questions
What is the primary function of a foreign key in a database table?
To establish a relationship between two tables
Which of the following is an example of an entity attribute?
What is the term for the associations between entities in a database?
Relationships
What type of model is used to represent the physical structure of a database?
Physical data model
Which of the following is a characteristic of a primary key?
It remains a primary key in the original table
What is the purpose of Crow's Foot Symbols in database modeling?
To represent relationships
What is the primary purpose of an Entity Relationship Diagram (ERD)?
To describe an overall design concisely yet accurately
What is an instance of an entity in a database?
A record or a row in a table
What is a primary key in a database table?
A set of attributes that uniquely identifies an instance of the entity
What is the purpose of a foreign key in a database?
To link two tables together
What is the primary focus of the Conceptual Data Model?
To establish the entities and their relationships
What type of relationship is typically represented in a Conceptual ERD?
Many-to-many
What is an example of an entity in a database?
A course
What is an attribute in a database?
A fact or description of an entity
Which of the following is NOT a characteristic of a Conceptual ERD?
It defines the physical database structure
What is the main purpose of a Logical ERD?
To establish the physical database structure
Which of the following levels of abstraction is NOT typically drawn in an ER model?
Implementation ERD
What is the main difference between the three levels of an ER model?
The purposes they are created for and the audiences they are meant to target
Test your understanding of database design concepts, including primary and foreign keys, entities, and relationships between tables. Learn how to model data and identify attributes of entities. Improve your skills in database design and development.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
