Exam 9: Database Management Systems

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A table is in third normal form when it is

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B

What is the relationship between a database table and a user view?

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User views are derived database tables.A single table may contribute data to several different views On the other hand,simple views may be constructed from a single table.

Which characteristic is not associated with the database approach to data management?

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D

Which duty is not the responsibility of the database administrator?

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Which statement is correct?

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Use the following words to complete the sentences. Use the following words to complete the sentences.    -The __________________________ describes every data element in the database. -The __________________________ describes every data element in the database.

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The database approach to data management is sometimes called the flat file approach.

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To the user,data processing procedures for routine transactions,such as entering sales orders,appear to be identical in the database environment and in the traditional environment.

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Use the following words to complete the sentences. Use the following words to complete the sentences.    -The conceptual view of the database is often called ____________________. -The conceptual view of the database is often called ____________________.

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Which of the following may provide many distinct views of the database?

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Describe an environment in which a firm should use a partitioned database.

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Data currency is preserved in a centralized database by

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Contrast the navigational databases with relational databases.What is the primary advantage of the relational model?

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All of the following are elements of the DBMS which facilitate user access to the database except

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What services are provided by a database management system?

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What control maintains complete,current,and consistent data at all information processing units?

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Why are the hierarchical and network models called navigational databases?

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A lockout is a software control that prevents multiple users from simultaneous access to data.

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A table in third normal form is free of partial dependencies,multiple dependencies,and transitive dependencies.

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The task of searching the database to locate a stored record for processing is called

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