
Database Design and SQL Quiz
Quiz
•
Engineering
•
Professional Development
•
Hard
Abinaya R
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does an Entity-Relationship Diagram (ER Diagram) describe?
The SQL queries for a database
The user permissions in a database
The data types in a database
The structure of a database
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of a Strong Entity?
It has a primary key
It depends on another entity
It has no attributes
It is represented by a diamond
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a Multivalued Attribute in an ER Diagram?
An attribute with a single value
An attribute with multiple values
An attribute that is derived from another
An attribute that cannot be null
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which SQL statement is used to create a view?
CREATE TABLE
CREATE TRIGGER
CREATE INDEX
CREATE VIEW
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the COUNT function in SQL do?
Sums the values of a column
Counts the number of rows
Calculates the average value
Finds the maximum value
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a Referential Integrity Constraint?
A rule that restricts null values in a column
A rule that checks the uniqueness of a column
A rule that ensures valid relationships between tables
A rule that defines the data type of a column
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of normalization in databases?
To simplify SQL queries
To create more tables
To increase data redundancy
To eliminate redundant data
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