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Database Systems Unit I: Introduction and Concepts
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Database Systems Unit I: Introduction and Concepts

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Questions and Answers

What command is used to delete rows from a view?

DELETE

What condition is used to delete a specific record from the CUSTOMERS_VIEW?

WHERE age = 22

What is the syntax to drop a view?

DROP VIEW view_name;

What is a transaction in the context of a database?

<p>A unit of work that is performed against a database</p> Signup and view all the answers

What is the purpose of a transaction in a database?

<p>To accomplish a sequence of work in a logical order</p> Signup and view all the answers

What is the result of a transaction on a database?

<p>The propagation of one or more changes to the database</p> Signup and view all the answers

Can a view be deleted if it is no longer needed?

<p>Yes</p> Signup and view all the answers

What is the name of the view in the example given?

<p>CUSTOMERS_VIEW</p> Signup and view all the answers

What is the condition used to delete a record from the CUSTOMERS_VIEW in the example?

<p>age = 22</p> Signup and view all the answers

What is the purpose of the DELETE command in the context of a view?

<p>To delete rows of data from a view</p> Signup and view all the answers

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