Exam 7: Database Administration

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In Oracle,the ____ table contains information about the tables known to SQL.​

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A

The command used to delete an index is ____________________.​

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DROP INDEX​

Which of the following commands deletes an index?​

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D

The database administrator uses the ____________________ command to revoke privileges from users.​

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If the user needs to be able to pass the privilege to other users,the GRANT command must include the ____________________ clause.​

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The privilege ____ can be granted to change data.​

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When you specify a foreign key,the table referenced by the foreign key is the ____.​

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In a DBMS,the main mechanism for increasing the efficiency with which data is retrieved from the database is the ____________________.​

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Access does not support the DROP VIEW command.​

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When you create a view,you cannot assign column names that are different from those in the base table.​

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A(n)____ is an application program's or an individual user's picture of the database.​

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Views provide data validation.​

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In a business organization,a person or an entire group known as the ____ is charged with managing the database.​

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When users create,alter,or drop tables or create or drop indexes,the DBMS updates the system catalog automatically.​

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The process of managing a database is called database ____________________.​

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To create a view definition,use the DEFINE VIEW command.​

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A(n)____________________ subset view consists of a subset of the rows and columns in some base table.​

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You use the LEGAL clause of the ALTER TABLE command to ensure that only legal values satisfying a particular condition are allowed in a given column.​

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To create a view in Access,create a query to define the view and then save the query object in the database.​

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When renaming columns,you include the new column names in ____ following the name of the view.​

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