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5 Questions

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View in Relational Databases

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Questions and Answers

What is a view in a database?

A stored procedure in the database

A physical storage of data in the database

A virtual relation that is produced upon request (correct)

A permanent storage of data in the database

What is the primary purpose of a view?

To produce another relation upon request (correct)

To perform complex calculations on data

To store data permanently in the database

To create a new database schema

Where is a view typically stored?

In memory, at the time of request (correct)

In the database as a physical table

On a remote server

In the database as a virtual table

What type of relation is a view?

<p>Virtual relation</p> Signup and view all the answers

When is a view typically produced?

<p>At the time of request</p> Signup and view all the answers

Study Notes

View Definition

A view is the dynamic result of one or more relational operations on base relations, producing another relation.

Key Characteristics

A view is a virtual relation that does not necessarily exist in the database.
A view is produced upon request, at the time of request.

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Description

This quiz covers the concept of a view in relational databases, a virtual relation generated by one or more operations on base relations. It discusses how views are produced upon request and do not necessarily exist in the database.