Database Design and SQL Quiz

Database Design and SQL Quiz

Professional Development

10 Qs

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Database Design and SQL Quiz

Database Design and SQL Quiz

Assessment

Quiz

Engineering

Professional Development

Hard

Created by

Abinaya R

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10 questions

Show all answers

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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