Exam 13: Views

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The UPDATE command cannot be used on a view created with the WITH CHECK OPTION._________________________​

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____ aren't allowed in the CREATE VIEW command.​

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DML operations cannot be performed on a key-preserved table.​

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​An ORDER BY clause can be included in a(n)____________________ view to perform "TOP-N" analysis.

(Short Answer)
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​The ____________________ command can be used to permanently remove a view from a database.

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If you want to create a view based upon a table or tables that do not yet exist,or are currently unavailable (e.g. ,off-line),what keyword can you use to avoid receiving an error message?​

(Multiple Choice)
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​When a view includes columns from more than one table,updates can only be applied to the table that contains the ____________________ for the view.

(Short Answer)
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DML operations cannot be performed on non key-preserved tables through a complex view._________________________​

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A(n)view is a database object,but it does not actually store data._________________________​

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Which type of view is created from the following SQL statement? CREATE VIEW balancedue AS SELECT customer#,order#,SUM(quantity*retail)amtdue FROM customers NATURAL JOIN orders NATURAL JOIN Orderitems NATURAL JOIN books GROUP BY customer#,order#;

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Rows can be deleted through a simple view as long as the operation does not violate existing constraints and the view was created with the WITH READ ONLY option.​

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Which of the following types of views cannot include a group function?

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Which of the following statements is incorrect?​

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A(n)____ table is the table that contains the primary key the view uses to uniquely identify each record being displayed by the view.​

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Rows cannot be deleted from a table through a complex view that is based on a group function._________________________​

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Which constraint ensures that the data in a view cannot be changed?​

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DML operations can be performed on a view created with the DISTINCT keyword.​

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A(n)simple view can contain a GROUP BY clause._________________________​

(True/False)
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Which of the following statements about complex views is incorrect?​

(Multiple Choice)
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​A(n)____________________ view is used to replicate data which can be called a snapshot.

(Short Answer)
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