Database SQL Quiz2

Create an image of a modern database environment with numerous interconnected data tables and visual representations of SQL queries, emphasizing a learning and educational atmosphere.

Database SQL Quiz

Test your knowledge of database principles and SQL with this engaging quiz designed for aspiring database administrators and IT professionals. Whether you are a student or a teacher, this quiz will help you gauge your understanding of important concepts related to relational databases.

Key features of the quiz:

Topics include data integrity, relationships, and keys.
Assess your understanding of business rules and constraints.
Ideal for learning and preparing for certification.

15 Questions4 MinutesCreated by QueryMaster257

A(n) ____ is a restriction placed on the data.

Attribute

Entity

Relationship

Constraint

A(n) ____'s main function is to help you understand the complexities of the real-world environment.

Constraint

Entity

Model

Database

Which of the following is true of business rules?

They allow the designer to set company policies with regard to data.

They allow the designer to develop business processes.

They can serve as a communication tool between the users and designers.

They provide a framework for the company's self actualization.

____ are normally expressed in the form of rules.

Attributes

Entities

Relationships

Constraints

A(n) ____ is bidirectional.

Attribute

Entity

Relationship

Constraint

A(n) ____ is anything about which data are to be collected and stored.

Attribute

Entity

Relationship

Constraint

The relational data model was developed in the ____.

1960s

1970s

1980s

1990s

A _____ is any key that uniquely identifies each row.

Superkey

Special key

Foreign key

Candidate key

A _____ key is defined as a key that is used stictly for data retrieval purposes.

Lookup

Foreign

Candidate

Secondary

He CUSTOMER table's primary key is CUS_CODE. The CUSTOMER primary, key column has no null entries, and all entries axe unique. This is an example of _____ integrity.

Entity

Referential

Relational

Null

In the relational model, _____ are important because they are used to ensure that each row in a table is uniquely identifiable.

Relations

Keys

Indexes

Logical structures

The order of the rows and columns is important to the DBMS

True

False

A key can be described as a minimal superkey. A superkey without any unnecessary attributes

Secondary

Candidate

Primary

Foreign

The low, reangeof permissible values known as Its domain

True

False

A _____ is the primary key of one table that has been placed into another table to create a common attribute.

Superkey

Composite primary key

Candidate key

Foreign key

Database SQL Quiz2

Database SQL Quiz

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