Database SQL Quiz8
Database SQL Fundamentals Quiz
Test your knowledge of database design concepts and SQL with this engaging quiz. Whether you are a beginner looking to grasp the basics or an experienced developer wanting to refresh your skills, this quiz covers essential topics from entity relationships to cardinality.
Key Features:
- Multiple-choice questions
- Instant feedback on your answers
- Improve your understanding of SQL and database modeling
A _____ attribute can be further subdivided to yield additional attributes.
Composite
Simple
Single-valued
Multivalued
A composite identifier is a primary key composed of more than one attribute.
True
False
A _____ relationship exists when three entities are associated.
Unary
Strong
Ternary
Weak
A _____ relationship exists when an association is maintained within a single entity.
Unary
Ternary
Strong
Weak
The existence of a mandatory relationship indicates that the minimum cardinality is 0 or 1 for the mandatory entity.
True
False
In the Chen and Crow's Foot notations, an entity is represented with a rectangle containing the entity's name.
True
False
Referential integrity and participation are both bidirectional, meaning that they must be addressed in both directions along a relationship.
True
False
_____ expresses the minimum and maximum number of entity occurrences associated with one occurrence of the related entity.
Connectivity
Relationship
Dependence
Cardinality
If an employee within an EMPLOYEE entity has a relationship with itself, that relationship is known as a _____ relationship.
Self
Self-referring
Looping
Recursive
An entity in the entity relationship model corresponds to a table in the relational environment.
True
False
The entity relationship model (ERM) is dependent on the database type.
True
False
A _____ attribute is one that cannot be subdivided.
Composite
Simple
Single-valued
Multivalued
Connectivities and cardinalities are established by concise statements known as business rules.
True
False
In the entity relationship diagram (ERD), cardinality is indicated using the _____ notation, where max is the maximum number of associated entities and min represents the minimum number of associated entities
(max, min)
(min, max)
[min ... max]
{min|max}
Ideally, an entity identifier is composed of _____ attribute(s).
One
Two
Three
Six
{"name":"Database SQL Quiz8", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Test your knowledge of database design concepts and SQL with this engaging quiz. Whether you are a beginner looking to grasp the basics or an experienced developer wanting to refresh your skills, this quiz covers essential topics from entity relationships to cardinality.Key Features:Multiple-choice questionsInstant feedback on your answersImprove your understanding of SQL and database modeling","img":"https:/images/course1.png"}